How to make regular expressions in PHP?

Question

How to make regular expression in PHP? Can anyone guide me to the basic rules to make regular expressions?

Answer 1

http://php.net/manual/en/function.preg-match.php

http://php.net/manual/en/function.preg-replace.php

php.net in general has the entire documentation for the php language. It's probably one of the more valuable resources available.

Answer 2

A good start would be the PHP manual for regular expressions:

Regular Expressions (Perl-Compatible)

There are three major use cases for regular expressions:

• Searching: preg_match
• Replacing: preg_replace
• Splitting: preg_split

Answer 3

Check out this regex tutorial and its PHP section for details on how to use regexes in PHP.

Answer 4

See the book of PHP’s PCRE functions, in particular the chapter on PCRE’s pattern syntax.

Answer 5

Here are a couple tutorials on using regular expressions in PHP that will get you started:

• Regular Expressions (Part1) - Basic Syntax
• PHP regular expression tutorial