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 PHP / Regex Regular Expression, commonly known as RegEx is considered to be one of the most complex concepts. However, this is not really true. Unless you have worked with regular expressions before, when you look at a regular expression containing a sequence of special characters like /, $, ^, \, ?, *, etc., in combination with alphanumeric characters, you might think it a mess. RegEx is a kind of language and if you have learnt its symbols and understood their meaning, you would find it as the most useful tool in hand to solve many complex problems related to text searches. Site: www.macronimous.com
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 PHP / Regex We all know the importance of regular expressions. They are inseparable part of most user input form validations. This tutorial gives you the basic overview of regular expressions in POSIX style and their support by PHP. Site: www.alphapatrol.com
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PHP / Regex In this tutorial I will show you how regular expressions work in PHP, and give you a short introduction on writing your own regular expressions. I will also give you several example regular expressions that are often used. Site: www.codebeach.com
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PHP / Emailing This tutorial will show you how to check to see if an E-mail address is valid. When you register on at a website, the site normally checks if the e-mail address that you enter is in a valid format. This is done by using what called a Regular Expression. Site: www.webdesign.org
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PHP / Regex The tutorial covers the following: * The definition of regular expressions and the basics of their use * Potential problems that might arise while using regular expressions * Use of regular expressions to perform data validation in a web applications * Functions that use regular expressions to perform more interesting and advanced tasks. Site: www.brainbell.com
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PHP / Getting Started This tutorial describes: What are PHP operations, How expression works in PHP. Site: www.herongyang.com
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PHP / Regex A short tutorial howto validate an email address during form processing. An example "copy & paste" html form code is included to demonstrate the functionality. Site: www.phptoys.com
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PHP / Regex Regular expressions provide a means for advanced string matching and manipulation. They are very often not a pretty thing to look at. Site: www.webdesign.org
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PHP / Getting Started The topics covered in this tutorial include: * PHP basics, including script structure, variables, supported types, constants, expressions, and type conversions * Condition and branch statements supported by PHP, including if, if...else, and the switch statements * Looping statements * Arrays and array library functions * Strings and string library functions * Regular expressions * Date and time functions * Integer and float functions * How to write functions, reuse components, and determine the scope and type of variables * An introduction to PHP object-oriented programming support * Common mistakes made by programmers new to PHP, and how to solve them. Site: www.brainbell.com
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PHP / Regex Regular Expressions are present throughout many, many different languages, and can sometimes be a hassle to deal with. |
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PHP / Regex One of PHPs most useful features is its string processing abilities. Feed PHP any string, and it can process it in any number of different ways with a multitude of different in-built functions. Finding letter occurrences, replacing certain words, limiting the number of characters, etc - it's all made very easy. Site: biorust.com
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PHP / Security One of the many ways of hashing data using PHP is a function called md5(). md5() converts a string of text into a 32-character hash, using a secret algorithm, thus protecting the original source information. md5() hashed strings cannot be dehashed either, which presents us with the novel problem of working out if two md5-hashed strings are equal. The answer is actually quite simple. Take a login system - instead of dehashing the string and comparing it to a regular password, you take the hashed string and compare it to a string that has already been hashed! Sounds simple doesn't it? Site: biorust.com
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PHP / Regex For the most of the PHP scripter which are using preg_match or preg_replace frequently is the function preg_match_all a smaller advantage, but for all others it's maybe hard to understand. The biggest difference between preg_match_all and the regular preg_match is that all matched values are stored inside a multi-dimensional array to store an unlimited number of matches. |
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PHP / News and RSS Feeds These days everybody wants to have fresh content on their web site. Search engines like to see dynamic web pages, where the content is updated on a regular basis. Static pages that have information that doesn't change are not only boring, but less likely to be visited by a search engine spider than a page that changes every time it is displayed. Site: www.chauy.com
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PHP / General Development PHP is a very fast programming language, but there is more to optimizing PHP than just speed of code execution. In this chapter, we explain why optimizing PHP involves many factors which are not code related, and why tuning PHP requires an understanding of how PHP performs in relation to all the other subsystems on your server, and then identifying bottlenecks caused by these subsystems and fixing them. We also cover how to tune and optimize your PHP scripts so they run even faster. Site: phplens.com
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