<Essential Guide To Regular Expressions: Tools and Tutorials ⁄ >

Regular expressions are an essential part of any programmer's toolkit. They can be very handy when you need to identify, replace or modify text, words, patterns or characters. In a nutshell: regular expressions (regex) are like a Swiss army knife for modifying strings of just about anything. Need to make your site URLs look pretty? Use regex. Need to remove all punctuation from a sentence? Definitely use regex. The uses for regular expressions are almost limitless.

Regular expressions are something that you'll come across at least once in your development cycle, whether you're just trying to modify an .htaccess file to make clean URLs, or something much more advanced like filtering RSS feeds or other data. Here are some resources to get you well on your way to mastering regex.



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