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> The Absolute Bare Minimum Every Programmer Should Know About Regular Expressions
dserban
post Aug 16 2007, 08:46 PM
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Well, the title says it all and I really don't have anything to add to that, except to say that this is a really, really powerful technology that is very pervasive in many programming as well as scripting languages and as well in mainstream database products.

I really recommend you put in the time and effort to learn regular expressions, they are power tools that are going to open for you a whole new world of text processing possibilities.

Link:
http://immike.net/blog/2007/04/06/the-abso...ar-expressions/
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develCuy
post Aug 16 2007, 10:59 PM
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regexp in PHP Arrays:

Clear blanks:
CODE
$array = preg_grep('/[^$]/', $array);


Patterns for zip codes
CODE
$zip_code = str_replace(' ','','ZIP CODE');

    $pattern = array(
      array(
        '/^[[:alnum:]]{6,6}+$/',
        '/[[:alpha:]]/',
        '/[[:digit:]]/'
      ),
      array(
        '/^(\d){5,5}+$/'
      )
    );
        $is_zip_code = true
    for($_j = 0; $_j < count($pattern[$_i]); $_j++){
      $is_zip_code = ($is_zip_code and preg_match($pattern[$_i][$_j],$zip_code));
    }


Regexp have power to resume your code in rules, then you are able to change the pattern easily.
There are many tools to create regexp patterns.

Blessings!

This post has been edited by develCuy: Aug 16 2007, 11:00 PM
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