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Posted By

Scooter on 07/19/08


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regular expressions


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sumandahal


isAlpha

Published in: PHP 

URL: http://reusablecode.blogspot.com/2008/07/isalphanumeric.html

Plain TextExpand 
  1. <?php
  2.     /*
  3.     Copyright (c) 2008, reusablecode.blogspot.com; some rights reserved.
  4.     
  5.     This work is licensed under the Creative Commons Attribution License. To view
  6.     a copy of this license, visit http://creativecommons.org/licenses/by/3.0/ or
  7.     send a letter to Creative Commons, 559 Nathan Abbott Way, Stanford, California
  8.     94305, USA.
  9.     */
  10.  
  11.     // Checks if a string contains only alpha characters.
  12.     function is_alpha($someString)
  13.     {
  14.         return (preg_match("/[A-Z\s_]/i", $someString) > 0) ? true : false;
  15.     }
  16. ?>

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