Extra Features in Php Regular Expressions
PHP Regular Expressions – Part VIII
Introduction
We have learned a lot about regular expressions in PHP. What we have learned would solve many of our problems. However, there will come a time when you would want to do more in regex. So this last part of the series is to add to what we have learned and introduce you to extra features in PHP. I intend to write articles on these extra features.
Internal Option Setting
You can embed modifiers in the regex (in the pattern). I will use the case-less modifier, i to illustrate this. Remember, the case-less modifier makes the matching insensitive. However, when you embed a modifier, it has its effect from the point of embedding to the end of the regex. The exception to this is when the modifier is in a subpattern (see below). A modifier is embedded by enclosing it in the characters, (?), just after the ‘?’ sign.
Consider the subject,
“XYZ”
and the regex,
“/(?i)xyz/”
Note the character set, “(?i)” that has the i modifier. The above regex would match all of the above subject, since the modifier is the first element in the regex. The following expression produces a match:
preg_match(“/(?i)xyz/”, “XYZ”)
Consider the following regex:
“/xy(?i)z/”
Here, the modifier has been put just before the last character, ‘z’. When the modifier is included in the regex, it has effect from the point of inclusion to the end of the regex. So the above regex would match, “xyZ” or “xyz”.
Putting the modifier at the end, just before the last forward slash has no effect. The following expression does not produce a match:
preg_match(“/xyz(?i)/”, “XYZ”)
Modifiers embedded in this way, are called Internal Options.
Now, the following two regexes are the same:
/(?i)xyz/
and
/xyz/i
For the second one, the whole regex is case insensitive; we have seen this. For the first one, the whole regex is case insensitive by virtue of the fact that the modifier is at the beginning of the regex (inside the pattern).
You can unset a modifier by preceding it’s letter inside the pattern with a hyphen. Let us now look for a regex that can match, “XYz” or “Xyz” or “xYz” or “xyz”. The regex for these subjects is:
/xy(?-i)z/i
Note that at the end of the regex, you have the i modifier which makes all the regex case insensitive. So in the regex, x and y are case insensitive. However, the case insensitivity of z has been unset by the presence of the option (?-i) in front of it. So, now, z in the regex is in lower case and would only match a corresponding lower case z in the subject.
Internal options can be used with long subject strings as well. The following expression produces a match.
preg_match(“/the I(?i)nternet/”, “I work with the Internet.”)
The regex would match “the Internet” or the “the INTERNET”.
Embedding Comments in a Regular Expressions
You use the following tag to insert a comment into your regex:
(?#Comment)
You start with ‘(?#’ you type your comment and then you end with ‘)’. The regex, /the I(?i)nternet/ can be commented as follows:
/the I(?# the first part of the regex)(?i)nternet(?# I for Internet must be in upper case)/
We saw the use of the x modifier to include a comment in a regex in part VI. Using the tag “(?#Comment)” is good when your regex and comments are on one line. If you want your regex and it comments to be on more than one line, then you should use the x modifier and escape all the white spaces, as follows:
$ re = “/the\ I# the first part of the regex
nternet# I for Internet must be in upper case
/x”;
The above literal is assigned to a variable and the variable would be used in the preg_match() function as follows:
preg_match(“/the\ I# the first part of the regex
nternet# I for Internet must be in upper case
/x”, “I work with the Internet.”)
Note: the “(?#Comment)” tag cannot be nested, You cannot have “(?#Comment(?#Comment))” in a regex
Non-capturing Subpatterns
A subpattern is a pattern in parentheses in regex. By default, any such pattern is captured into an array. The variable of this array is the third argument in the preg_match() function. Consider the following code:
<html>
<head>
</head>
<body>
<?php
if (preg_match(“/(one).*(two)/”, “This is one and that is two.”, $ matches))
echo “Matched” . “<br “;
else
echo “Not Matched” . “<br “;
echo $ matches[0] . “<br “;
echo $ matches[1] . “<br “;
echo $ matches[2] . “<br “;
?>
</body>
</html>
The is the output of the above code:
Matched
one and that is two
one
two
The first item in the output is “Matched”. This is displayed by the if-statement in the code when matching occurs in the function, preg_match(). The next three lines in the output are elements captured and stored in the array, $ matches, by the preg_match() function. The first element in the array is the complete sub string matched in the subject string. The next two elements in the array are the sub strings of the subpatterns captured. The two subpatterns are “(one)” and “(two)”. So “one” and “two” in the subject string are captured.
You may not want to capture every sub pattern. If you do not want to capture a subpattern, precede the content of the subpattern with “?:”. To prevent the subpattern “(one)” above from being captured, you need “(?:one)” for the pattern. The pattern still remains a valid pattern with its other advantage, but it is not captured. The following code illustrates this:
<html>
<head>
</head>
<body>
<?php
if (preg_match(“/(?:one).*(two)/”, “This is one and that is two.”, $ matches))
echo “Matched” . “<br “;
else
echo “Not Matched” . “<br “;
echo “<br “;
echo $ matches[0] . “<br “;
echo $ matches[1] . “<br “;
echo $ matches[2] . “<br “;
?>
</body>
</html>
The output of the code is:
Matched
one and that is two
two
The last two lines are the elements of the array. The first element of this array is the entire sub string matched. The rest of the elements are sub strings captured. We prevented the first subpattern, “(one)” from being captured by transforming it into, “(?:one)”. From the output, we see that “one” of the subject string has not been captured, as we expected. “two” has been captured.
The tag for making group non-capturing is
(?:subpattern)
Including Modifiers in Non-Capturing Subpatterns
We have seen how you can embed modifiers in a regex. You may want to include a modifier in a non-capturing subpattern. There are two ways of doing this. Let us say you want include the modifier, i in the non-capturing sub pattern “(?:one)” above. You can do it like this:
(?:(?i)one)
or like this
(?i:one)
The first method above is the more obvious way (based on what we have learned). The second method is like a contraction of the first method. The following expression produces a match:
preg_match(“/(?:(?i)one).*(two)/”, “This is ONE and that is two.”)
The following expression also produces a match.
preg_match(“/(?i:one).*(two)/”, “This is ONE and that is two.”)
Modifiers in Subpatterns
We said at the beginning of this part of the series, that a modifier embedded in a regex, has its effects from the point of inclusion to the end of the regex. The question you may have is this: “If the modifier is in a subpattern, would it have its effect only in the subpattern or right to the end of the regex out of the subpattern?”
Let us just write two short scripts to verify that. This is the first:
<html>
<head>
</head>
<body>
<?php
if (preg_match(“/(?i:one).*(two)/”, “This is ONE and that is TWO.”))
echo “Matched” . “<br “;
else
echo “Not Matched” . “<br “;
?>
</body>
</html>
The above script does not produce a match. In the above script, the i modifier is inside a non-capturing subpattern. The word “TWO” inside the subject is in upper case. A match is not produced.
In the following script, we are not dealing with a non-capturing subpattern; we are dealing with a capturing subpattern.
<html>
<head>
</head>
<body>
<?php
if (preg_match(“/((?i)one).*(two)/”, “This is ONE and that is TWO.”))
echo “Matched” . “<br “;
else
echo “Not Matched” . “<br “;
?>
</body>
</html>
The above script does not produce a match. In the above script, the i modifier is inside a capturing subpattern. The word “TWO” inside the subject is in upper case. A match is not produced.
We conclude for this section that if a modifier is in a subpattern, captured or non-captured, it has its effect only on that subpattern and not outside the subpattern. If the modifier is not inside a subpattern, it has its effect from its point of insertion to the end of the regex.
That is it for this section.
And, finally we have come to the end of the series. We saw so many things. There are still some extra features in PHP regexes to be seen. I intend to address the extra issues as independent articles. I hope you appreciated this series.
Chrys
To arrive at any of the parts of this series, just type the corresponding title below and my name, Chrys, in the Search Box of this page and click Search (use menu if available):
PHP Regular Expressions
Regular Expression Patterns in PHP
More Regular Expression Patterns in PHP
Regex SubPattern in PHP
Regex Modifiers in PHP
Building a Regular Expression in PHP
Using Regular Expressions in PHP
Extra Features in PHP Regular Expressions
Written by Chrys
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12 Free Search Engine Optimization Instruments You Must Use.
12 Free search engine optimization Instruments You Should Use.
Effective search engine marketing methods require lots of effort and time. Though in the various search engines market exist very advanced tools that cost loads, there are lots of free search engine optimisation tools which will help the novice and superior website positioning marketer to save lots of precious time.
Here is a list of free and proven for their effectiveness search engine optimisation on-line devices:
1) http://www.alexaranking.com . It shows a number of domains instead of one. Due to this fact, you possibly can have instantaneous traffic outcomes from Alexa Rankings as an alternative of typing and search every time separately. http://www.googlefirstpage.ws/providers/our-services
2) http://www.xml-sitemaps.com . Sitemaps are extraordinarily vital for websites as a result of they assist search engines crawl and index them. This is a free xml sitemap generator.
3) http://www.123promotion.co.uk/directorymanager . You’ll be able to monitor your submissions to numerous web directories and you can too visit often to see new directories added to the list. You just tick the suitable submission bins once you submitted your website. It’s very simple to use it.
4) http://www.123promotion.co.uk/ppc/index.php. This is a very highly effective tool. It shows, based mostly on the Overture and Wordtracker key phrase search instruments, similar data, together with search figures from the previous month. It additionally provides statistics for common searches per hour, day, week, projected figures for the next 12 months after which additionally a determine to see how searches might look in three years from now. http://www.googlefirstpage.ws/services/our-providers
5) http://www.seochat.com/seo-tools/key phrase-density . This keyword density device is beneficial for serving to site owners/search engine optimization’s obtain their optimum key phrase density for a set of key phrases/keywords. This software will analyze your chosen URL and return a desk of key phrase density values for one, two, or three word key terms.
6) http://www.mcdar.internet/KeywordTool/keyWait.asp . This is another Excellent Resource. While you enter the appropriate URL and key phrase, it will show Pagerank and Back-links pages for the Prime 10 websites.
7) http://www.123promotion.co.uk/tools/robotstxtgenerator.php . You possibly can create a free robots.txt file with this resource. So, you will be able to direct the search engines to follow the pages construction of your website and also direct the search engines to not comply with and crawl specific web pages of your website you don’t need to be crawled.
All you must do is filling the fields and when the robots.txt file is created you upload it to your root of your internet server. http://www.googlefirstpage.ws/services/our-providers
eight) http://www.nichebot.com . This website shows keyword knowledge utilizing Wordtracker and Google search results. You just enter the keyword and press the button.
9) http://www.webconfs.com/area-stats.php . You Enter the domain and get: area age, variety of pages indexed, and number of backlinks. The statistics embody Alexa Taffic Rank, Age of the domains, Yahoo WebRank, Dmoz listings, rely of backlinks and number of pages indexed in Search Engines like Google, Yahoo, Msn etc.
It should assist you figure out why a few of your rivals are ranking higher than you.
10) http://comparesearchengines.dogpile.com . Reveals top results from 3 search engines. This instrument helps you get all sort of statistics of your competitor’s domains.
11) http://www.marketleap.com/confirm/default.htm . This verification software checks to see in case your web site is within the top three pages of a search engine end result for a specific keyword. You enter your URL/Key phrase and it displays prime 30 for 11 Search Engines.
12) http://www.associated-pages.com/adWordsKeywords.aspx. This instrument generates a listing of doable keyword combinations based on lists of key phrases that you provide.
You enter an inventory of terms, one per line or separated by commas. This is very efficient for Google Adwords and Overture.
Written by darrt9yyba
Web Development | Seo (Search Engine Optimization) Techniques
Web development is carried out with the use of languages such as HTML, XML, Flash, Perl, CSS etc. Like languages we use in our day to day life, each of these languages used for web development has their own respective logics. A web developer must be well-versed in the use of one or more of these languages.the all of these language is used a different techniques to developed a web site.we can developed our site in various languages like .Net, java, php etc.the site mostly made in php because this language is basically made for web design,the features and property of this language are most appropriate for web designing. In other languages like .Net and Java also provide a code to web design ,the java provide more secure code then other language
Asynchronous JavaScript And XML (AJAX) is a web development technique used to create interactive web applications.these all are the features of the web development .In this competitive Computer age, we can’t bound the website only for the organization information provider but it limits extends, now a day we are seeing the website as a online web application tool via which we deliver the information from one place to other with a help of internet.In the field of web development it is a new mantra of success in ‘India’. Global companies are recognizing the path-breaking working being carried out by web developers in India.
SEO Techniques:-
SEO (Search engine optimization) is the process of improving the visibility of a website or a web page in search engines via the “natural” or un-paid search results. SEO may target different kinds of search, including image search, local search, video search and industry-specific vertical search engines.With the help of SEO techniques we can stand our site in top 10 list in any search engine.Off page optimization and on page optimization is a two type of SEO techniques, with the help of these type we can upgrade our site in first page search.
SEO Techniques are:The use of SEO Tools,Creating Keyword Phrases for your site,Keyword Density,Construction of title tags, meta description tags, meta keyword tags,In selecting Domain and File Names,Your Content quality and quantity matters,Separate the Content from your Presentation,The Author and Robots Tags,Backlinks(A backlink is a link from other websites from which you have trade links with),Page Rank etc.By used of these SEO techniques we can successfully optimize our site.
Written by rajeshrajat
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How to Tune an OBD1 BMW (1990-1995)
Instructions
Difficulty: Moderately Challenging Things You’ll Need:
EEPROM burner or Emulator
(optional) Wideband O2 Sensor, logging software
Some guts, an M5x/S5x based BMW motor
And the desire to learn!
Step1 Familiarize yourself with the DME, and the community effort (granted it peaked four years ago) behind unlocking this DME and tuning with it!
1990-1992 M50nv = Non vanos.
1992-1995 M50tu = Vanos.
This DME can also run other M5x or S5x variant motors, but it will be trickier, and you will have to do more research.
To view some of these documents or to use many of these files you will need the free software “acrobat viewer” and “winrar”, found through google. If any of the files are missing or copyrighted, please contact me so I can remove or reupload them.
Non Vanos ETM = http://www.greystonesagainst3g.co.uk/e34_91_etm.pdf
Vanos ETM = http://www.greystonesagainst3g.co.uk/e34_92_etm.pdf
Long, very informative thread started by one of the current top tuners in the BMW community : http://74.125.47.132/search?q=cache:1xUuDYTpnHYJ:forums.bimmerforums.com/forum/archive/index.php/t-431228.html+”413+dme”+8096&hl=en&ct=clnk&cd=1&gl=us
Here is a GREAT collection of threads and documentation AND a FANTASTIC corrected MAF table .xls… you NEED to get this.
http://uploading.com/files/NXCBDDKT/Docs.rar.html
Step2 A screen shot from Mark Mansur of Tunerpro Next you will need to download a few programs. The primary program used is tunerpro, great free software from : http://tunerpro.markmansur.com/downloadApp.htm
You will also need definition files which are used with tunerpro to read the information from your bmw : http://uploading.com/files/EZQWCWQH/XDF.rar.html
Stock “.bin” files which are found in the chip where the BMW’s tune is stored on the DME : Non Vanos – http://uploading.com/files/ZL18SYXD/403Bins.rar.html
and Vanos – http://uploading.com/files/9WR8MW76/413Bins.rar.html
I also used a program called Analyze: http://uploading.com/files/0ZULJ06X/Analyze.zip.html
and Maphunter: http://uploading.com/files/MZCRZZWJ/MapHunter.zip.html
Depending on how capable you are, you will also want a hex editor of your choice and a disassembler as mentioned in the articles above.
Step3 Burn2 image, courtesy of xenocron.com Now make sure you have the necessary hardware. You will need to get access to your DME located in the top corner of the passenger side of the engine bay. You will also need an EEPROM burner like the “burn2″ or an ostrich EEPROM emulator, I purchased both from xenocron.com. You will also need at least one rewritable chip, I recommend purchasing several SST 27SF512 chips from the same website. They are cheap and if you are not careful you might bend a pin.
You can also purchase a wideband oxygen sensor used for tuning your car, I would reccomend the LC-1, and logging the files directly to a laptop.
Step4 Now you have the bare essentials to tune your BMW. There is a lot more development to be done, and I welcome all comments, developments and additions. Please email me! In order to develop this project further you will have to load the bin files from your BMW, and the stock bins included in this writeup in hex editors, map analyzers, etc, use what you see already and what is available on the forums to try and find more! There are still many key components missing, and some ill defined, like the oft discussed injector latency constant.
Step5 To get started with what you have now, I am going to give you some steps… these are all optional, not guaranteed to work, do at your own risk, feel free to change it up, etc.
Open up tunerpro and load up an XDF and a BIN. Make sure that they match, you should be able to tell when the tables have logical values, for example 6450 for a rev limiter, 1.0 for an injector constant. Some tables may be off, you can use the hex viewer to find where the table starts, sometimes they are offset by as little as two bits.
Step6 Now that you have the proper xdf and bin file for your car loaded up and some tables out, adjust the necessary values. For example if you are installing a 540HFM as a bigger MAF in your 325i/525i find the table for a 540 MAF and copy it in. If you are installing injectors that flow twice as much, you will need to drop the injector constant to .5 from 1.0… fuel and ign adjustments as necessary.
Step7 When you are ready to try the bin, at your own risk of course, attach your EEPROM burner. Burn the bin file either using the function in tunerpro or your own burner. Take the chip out of your DME and MAKE SURE you install the chip facing the same way, with the mooncut on the chip facing the same direction. CRITICAL.
Step8 With the chip installed in the DME I recommend unplugging it for a few minutes to clear out the fuel trims. When you fire up the car it may stumble or have a rough idle. It will either take about a minute to catch itself and smooth out, or you will need to adjust your tune. Hopefully at this point you have a wideband oxygen sensor installed and you can monitor your AFR’s and try to keep them around 12:1 or richer at WOT and ~14.7 at part throttle. Your tune will be unique and you will need to watch out for stumbling, detonation, lean or rich operation and more.
Step9 For actual tuning and more, there are tons of articles on the internet to read and years of experience to suffer through! Good luck in your endeavors and may the roundel be with you.
Tips & Warnings
Changing ANYTHING in the DME can lead to disaster. Be careful about everything; none of the files or instructions in this file are verified or proven.
Even if you get a handle on tuning and start making changes that seem to work, be careful… these engines can take a lot of punishment but a poor turn will send your HG and piston rings to heaven in no time.
Written by boostedschemes
FX Psychology For The Successful Trader
Taking responsibility of your capital
It is amazing how many people are happy to place their hard earned savings in other peoples hands, accept the losses as its easier to blame someone else than to take responsibility of those funds ourselves.
The first step in any financial success is to believe in yourself and your own abilities. Have you ever notice how the experts on stock exchange get it so wrong to often. It is a real boost to your ego and confidence level when you grasp the trading concept and acquire a real solid forex education.
With this new found knowledge and confidence you can often outperform many professionals with years of experience.
The forex market moves several times faster than any other financial market and with leverage, the rewards and losses compound many times. The best way to overcome the thought of using your own money and the volumes you will be trading is to think in terms points and not in dollars, rubles or pounds. Don’t calculate your profit and losses in terms of hard earn currency talk in terms of profits and losses in points. If you implement this psychology from the beginning it will feel as if are trading a demo, a mini or 10 contacts of a full account.
It is common practice for FX traders to refer to gains and losses as points. We don’t refer to the currency as the benchmark of our own performance. We reference our losses and gains in points and measure our performance against this.
When trading via a forex demo account most people do very well. Why? Its psychology 101 they are trading without fear. When the real money comes into play; even on mini forex trading account they suddenly find themselves not thinking clearly and trading with fear. The outcome can be many missed opportunities and accumulated losses. They quite simply loose their nerve and give into fear and greed. I have seen this happen to forex traders when they step up from a mini account to a full account. Same thing can happen for a forex trader when they decide to stop trading single contracts and start trading multiple contracts.
Easier said then done, stop thinking about how much money you may gain or loose. Think points not money no matter how many contracts you are trading. Try this approach in a demo account.
Cut your losses and run with the profits.
Simple concept but is one of the most difficult to implement for most forex traders. It can also be the demise for most forex traders. Most traders violate their predetermined plan and take their profits before reaching their profit target because they feel uncomfortable sitting on a profitable position. These same people will easily sit on losing positions, allowing the market to move against them for hundreds of points in hopes that the market will come back. In addition, traders who have had their stops hit a few times only to see the market go back in their favor once they are out, are quick to remove stops from their trading on the belief that this will always be the case. Stops are there to be hit, and to stop you from losing more then a predetermined amount! The mistaken belief is that every trade should be profitable. If you can get 3 out of 6 trades to be profitable then you are doing well. How then do you make money with only half of your trades being winners? You simply allow your profits on the winners to run and make sure that your losses are minimal.
Another good forex strategy is to move stop losses (the point the trade will be sold if it goes the wrong way) behind the trade to a level where a pull back can be accommodated but a reversal will lock in at least some profit.
Self-discipline
Use discipline when trading. Ask yourself this question. If my next retail purchase is over 0 how much research will I do prior to making the purchase. If you take your shopping serious take your trading seriously. The point to be made here is be sure that you have a plan in place before you start to trade. The plan must include stop and limit levels for the trade, as your analysis should encompass the expected downside as well as the expected upside.
Information over load
Keep your trading simple. Most traders start out with a simple trading strategy that is successful. But later on find themselves trying to find a better and more profitable system. They also allow themselves to be influenced by other opinions and too much fundamentals. It is not too different from going to a race track where everyone has a sure thing or the information available becomes so confusing you can no longer see the wood from the trees. Trading the stock market is often similar in this regard. Have a simple forex trading strategy, stick to it and keep it simple. The golden rule here is to keep it simple…don’t allow yourself to become confused with too much information and if you’re not sure or not in the right emotional frame of mind, don’t trade.
You are not married to your trades
The reason trading with a plan is so important is because most objective analysis is done before the trade is executed. Once a trade is in a position don’t analyze the market differently in the “hopes” that the market will move in a favorable direction. Look at the changing factors objectively that may have turned against your original analysis. This is especially true of losses. Learn from your mistakes. Forex traders with a losing position tend to marry their position, which causes them to disregard the fact that all signs point towards continued losses. Don’t take more trades in the hope that the market will turn in your favor. Your losses will accelerate.
Do not bet the farm
Would you over pay for a retail product? So why would you over trade. One of the most common mistakes that traders make is leveraging their account too high. They start by trading much larger sizes than their account and they don’t trade prudently. Leverage is a double-edged sword. Just because one lot (100,000 units) of currency only requires 00 as a minimum forex margin deposit, it does not mean that a trader with 00 in his account should be able to trade 5 lots. One lot is 0,000 and should be treated as a 0,000 investment and not the 00 put up as margin. Most traders analyze the charts correctly and place sensible trades, yet they tend to over leverage themselves. As a consequence of this, they are often forced to exit a position at the wrong time. A good rule of thumb is to trade with 1-10 leverage or never use more than 5% of your account at any given time. Forex currency trading is not easy. If it was everyone would be trading forex.
Now that you have mastered the psychology of forex you will need a good forex trading software application to start making money. Some of the best forex software application are; forex auto cash robot, forex autopilot, forex killer and forex loophole.
Forex Fox is one of the Senior Editors at Forex-Money-Exchange.com and is an avid experimentor with Forex products. Her concern is what works. The software will be an important part of your overall success. For free additional Info – http://www.forex-money-exchange.com/forex_products.php
Written by ForexFox
How to speed up page load times
How to speed up page load timesC){w.yPosition=C;r(“updated entry: “+b(w),1)}}else{w={url:B,isBackground:y,yPosition:C,isInlined:x.isInlined};D[B]=w;r(“new entry: “+b(w),1)}}function v(z){if(z.tagName){if(z.src){if(z.tagName==”IFRAME”){t(o.list_iframes,z,z.src,false)}else{if(z.tagName==”IMG”||z.tagName==”INPUT”||z.tagName==”TABLE”){t(o.list_images,z,z.src,false)}}}var y=u(z);if(y){t(o.list_images,z,y,true)}var A;if(n){A=z.children}else{A=z.childNodes}for(var x=0;x
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Home » Web Development » How to speed up page load times
How to speed up page load times
One of the most frustrating experiences online is when a website takes a long time to download. The average threshold of people’s patience for something to appear on the screen is now approaching around the 3 second mark due to faster internet connections and shorter attention spans.
Instructions
1
If you own a website that makes you money then page load speeds could be costing you dearly. For every second extra it takes for your website to appear you will lose more and more visitors, a 6 second delay for example could be eating into half of your potential profits!
Moving to a better web-host is the obvious answer to speed things up, just moving from a £6/month shared server to a £30/month dedicated server will show significant improvements.
Here’s 5 more tips you may not have thought about to furthermore speed up page load times on your site:
Tip 1 – Optimise Images, Videos and other Components
Massive images and automatically playing videos are the biggest cause of delays. Sometimes a 2MB background is the main culprit, especially when it’s been saved as a PNG instead of a JPG.
Use the Tool for Firefox Called ‘YSlow‘ to check the components of your website, generally you should try and keep the size under around 800kb overall, Amazon.co.uk is only 525kb and it includes a flash video:
2
Tip 2 – Combine and Optimise Javascript
Javascript is used on many ecommerce platforms and website that want to have that KILLER font but they can also really slow things down. Some Javascript is very heavy on the KB’s but mostly Javascript files do a few simple tasks.
Each time a browser comes across a Javascript file it is processed one-by-one in order of when it was found so if you have 15 .js files then that could be a long wait before you even start downloading the first image! Combining Javascript solves this problem and also lowers the number of requests sent our by the browser also if you don’t need a piece of code often then there is no need to make people download it every time, especially on the homepage.
Using a tool on a Firefox plugin called ‘Firebug‘ visually shows the Javascript files downloading and running in sequence (the purple bar show an idle status waiting for the previous Javascripts to finish):
3
Tip 3 – Multiple Domains For Images and Image Sprites
When requesting images a browser can only download a maximum of six at any one time. If your homepage has 50+ images on it then you’ll have a queuing issue with the images (even if they are tiny icons!) and will experience slow page load times. There’s 2 ways to combat this problem:
Multiple Domains - You can trick the browser into downloading from multiple domains or multiple sub-domains. Google maps uses a grid of square images to make up each complete picture, they typically have 24 images so Google uses 4 sub-domains to speed up the whole download process
(6 x 4 = 24):
Image Sprites - By using CSS positioning tricks you can use an image sprite which contains all of your common images within one large image. As you are only downloading one image you can reduce the amount of time required to queue up multiple images, you can create entire homepages out of one image if you have the time and skill:
4
Tip 4 – PHP Flush
Content Managed Websites that use PHP can become very slow with very little going on. Complex ecommerce sites built in PHP can really suffer from server lag as it builds each page dynamically on the fly before sending out the HTML code to the visitor who requests it.
A server can take a few seconds to build a webpage using PHP scripting and then afterwards the HTML script is sent out which then has to be managed as well; this processing time can take up many precious seconds.
One trick is to add the PHP Flush script in-between the and before the to avoid any adverse effects:
<?php flush(); ?>
5
Tip 5 – Zipping and Caching
If your server supports Gzip then ensure it’s switched on a.s.a.p.
Gzip compresses files server side and sends over the zipped version to visitors web browsers. If you’ve ever compared files before and after they’re zipped on your hard disk then you can see that it can reduce the file size by over 90% in some cases! Over 99% of browsers accept zipped files and can very quickly unzip them as soon as they appear.
Caching content is one of the fastest ways to improve page load times. It places files into the server’s memory (bypassing the server’s disk space) so the time it takes to retrieve each file is many, many times faster as it can be found straight away.
WordPress sites are perfect for caching as most of the pages don’t need to be dynamically generated like an old blog post for example. This website JunoWebDesign.com for example has some fancy caching on, to see it in action try visiting a very old blog post (to cache it) and then RE-visit the same page again to notice the change in page speed.
Busy ecommerce websites can really benefit from caching the homepage and popular product pages. One of our clients Ai Cache showed off their impressive caching software which remembers the most popular pages on an ecommerce sites and keeps them in the server’s memory ready to serve visitors as soon as possible.
Warning: Intelligent caching is hard to achieve and can become a bit of a mine-field if done incorrectly. You could only show cached versions of dynamically generated pages and get people jammed. For example an ecommerce website with caching turned on could accidentally not update the shopping basket when a viewer visits the homepage after something is added to the cart and just see a frozen non-dynamic homepage. If you’re shopping online and your cart suddenly emptied you’d be very likely to leave that website!
Tips & Warnings
Conclusion
Speed up your website now and you’ll reap the rewards in a very short space of time. When it comes to speed Google and Amazon are the ones to copy, they also are heavily involved in split testing techniques that can also also massively improve sales percentages without any extra traffic too.
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0){for(var u=0;u0){var B=h.shift();w.parentNode.appendChild(B)}for(var z=0;z
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Find More PHP Organizer Scripts Articles
Best Features of Erp Software System
These figures do list next to the owner or key data as transaction data does not change often.
Maintenance of master data to create a software program, federal individual counties can be successful. If the master individual departments a chance to enter a multi-maintained files, and instead of a separate system to ensure such events do not need to be installed.
Master data must be entered before transactions. This figure appears in the list of transactions. For example, the sales invoice for a particular customer set, all user names will appear in the list. Users select the client’s name and record sales invoice can be.
Transaction entries
Each ERP software allows the recording of the company’s daily operations. Activities are nothing but business processes and each process in each set. For example, when goods are purchased in a purchase invoice is raised and the purchase of a business process data to be recorded. After installing the master data, business transactions can be entered.
Linking different transactions
Often be linked to other transactions transactions. For example, bills must be added to the distribution business, so that information such as number of births in the sales invoice can be generated. In addition, sales orders, invoices may be subject to the information in a particular order, and birth number is generated.
Break
ERP software audit trail of transactions to ensure the detection limit. This feature allows the user to the source document and report back to the levels reported.
Data Management
ERP to support a centralized data management needs. Many times it may be necessary to maintain the data in some workstations can. Distributed data processing system, allows data to the ERP software, but allows the central administration.
Security
ERP systems help to ensure the security permissions feature, so users must have access. When being paid, the software license should be allowed. For example, if a user creates a payment is not free to release payment.
Reporting
Reporting module Trial Balance, Balance, Stock Ledger, General Ledger drawing data from different data files like the report generates. Database query tool for multiple databases and ad hoc reports are generated report.
Business Intelligence
Since the ERP software in large amounts of data collected, such managers will want to create a business intelligence data. Business intelligence tools in the integration of products although some ERP vendors, often a third-party business intelligence tools must be purchased. These devices feature needs to query and draw data from external sources to be able to create and report combined with the ERP database.
ERP Software offers e-mail, invoices, orders, notifications and claims allows the right places.
Rollback Service
A database transaction database, a set of operations plan succeeds or fails as a whole. If any operation is successful, the transaction fails, and the changes are committed to the database. If one drive fails, the whole transaction fails, and no changes are written to the database. The service is called the rollback feature.
Real-time verification
ERP Software is a real-time data verification to confirm the function of the previous transaction refers to. For example, the current account balance should be verified before a Czech. For another example, if a customer claims ahead of the customer must be verified prior to sale.
Web, which allows
ERP software allows you to enable the Web client or vendor of ERP software affect the company’s Web-based interface. With fast communication will lead to greater satisfaction.
Innoexcel is the IT Companies in India provides also best ERP software solutions we guaranteed that our ERP software better than other ERP Companies. Innoexcel developing software based on Java PHP Web Development.
Written by MithunpratapS
Php Tutorials Lecture One
Introduction
PHP, is the open source Web scripting language that has joined Perl, ASP,
and Java on the select list of languages that can be used to create dynamic on-line
applications.
Installing PHP
PHP is truly cross-platform. It runs on the Windows operating system, most versions
of UNIX including Linux, and even the Macintosh. Support is provided for a range of
Web servers including Apache (itself open source and cross-platform), Microsoft
Internet Information Server, Website Pro, the iPlanet Web Server, and Microsoft’s
Personal Web Server. The latter is useful if you want to test your scripts offline on a
Windows machine, although Apache can also be run on Windows.
You can also compile PHP as a standalone application. You can then call it from the
command line. In this book, we will concentrate on building Web applications, but
do not underestimate the power of PHP5 as a general scripting tool comparable to
Perl
What’s Needed?
To test your created files you have to buy an Linux Based Web hosting Here is link to the Best Affordable Linux Hosting contains all above services that i am using www.greensolutionspk.com
Secondly an PHP Editor I recommend you to USE Adobe Dream weaver CS5
Our First Script
echo(”hello world”);
?>
Now save the file as “index.php” upload it to your server & test it
for your help i have uploaded it to my web server check output of this file at this link www.xitclub.com/php/
Written by ayesha77
How to Avoid Enterprise Software Failures
How to Avoid Enterprise Software Failures
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Home » Software » How to Avoid Enterprise Software Failures
How to Avoid Enterprise Software Failures
Enterprise softwares are major part of a company, so it is necessary that it is successful software and it meets the need of your enterprise. It has the power to build a company but it also has it in it to destroy it. Many enterprises face major losses because of such softwares but many enterprises rise to the top because of it. Here are the ways to avoid such a failure.
Instructions
1
Where there is an enterprise there is enterprise software. The core functionality of this software is integration of operations and processes; including sales, accounting, finance, human resources, inventory and manufacturing etc. So it has to be error free and well developed also properly implemented and used to reap benefits from it. These softwares have sometimes led to the downfall of many enterprises.
2
It is very essential to build these softwares with utmost care and intelligence. These softwares come in various sizes and prices so it is very important to achieve its full purpose. There are various reasons why these softwares fail. Let us discuss some of the reasons why they fail and how to avoid them.
Tips & Warnings
One of the basic reasons for the failure is incomplete requirements. Now when you gather the requirements, you have to have everything. There should not be scope for any error. Many consultants or partners collect around eighty percent of the requirement and rest of it is figured out by them. This is ok with other projects but not with an enterprise software. Get every piece of information that is needed. Remember to do the necessary homework before proceeding towards building the software. Follow a diagnostic approach to the scoping of the project. Gather as much as information that you possibly can and clear all the questions and queries beforehand.
Sometimes requirements change as work progresses. Some clients will come up with more inputs after the process begins. They will not understand what negative impact it will have on the production process. Constantly changing requirements will kill your projects. They will drag time and also can cause major problems. So always verify the requirement and get it signed from your client.
It is always advisable to have a meeting with the client right before the start which will help you to be on the right track and will help clear many doubts and questions. It will give you a clear idea of what your client needs. Once the scope of the work is determined verify it with your client. Also get the minor scope changes documented and approved even though it won’t cost you a penny. Most clients want the best solutions so they push with changes during the production process not realizing the fact that it creates more hassles than success.
Sometimes enterprises come up with unrealistic time frames. Never take up such a project which has unrealistic time frames because you will jeopardize your reputation and also the future of your client. Take the time needed and deal with every minute details of the requirement. Clients on the other hand should not push your partner because if you allow sufficient time to your partner they will have more chances of doing a good job. A little bit of patience can avoid a major downfall.
These are some of the problems of why enterprise softwares fail, so always keep the provided solutions in mind for a better future, better working and a successful business and choose best software development company.
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