NewSourceMedia Blog » characters http://newsourcemedia.com/blog Focused on Interactive Design, Development and Marketing Mon, 07 May 2012 01:26:28 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 Php Remove Non-Alphanumeric Characters http://newsourcemedia.com/blog/php-remove-non-alphanumeric-characters/ http://newsourcemedia.com/blog/php-remove-non-alphanumeric-characters/#comments Thu, 28 Dec 2006 00:22:11 +0000 admin http://newsourcemedia.com/blog/2006/12/27/php-remove-non-alphanumeric-characters/ Continue reading →]]> Need help removing un-wanted characters from your php text form strings. Here's how to strip a string of all symbols and characters other than alphanumeric letters and numbers from your file or database. This code will delete any non-alphanumeric characters specified between the brackets, and then output/return the clean version.

The code

<?php $string = "Here! is some text, and numbers 12345, and symbols !£$%^&"; $new_string = preg_replace("//", "", $string); echo $new_string ?> The code should return this: Here is some text and numbers 12345 and symbols One more thing. If you don't like to keep the blank white space in your text just reformat the preg_replace by removing the "\s" whitespace character types. This is good for use with user names and passwords. The code would now look something like this: Hereissometextandnumbers12345andsymbols]]> http://newsourcemedia.com/blog/php-remove-non-alphanumeric-characters/feed/ 39