- str_replace: documentation ( source)
- preg_replace: documentation ( source)
<?php
function sanitize_style_input( $style ){
$style = str_replace("'", "", $style);
$clean_style = preg_replace('#[^a-zA-Z0-9.:;\- \\\,\\\(\\\)%]#i', '', $style );
return $clean_style;
}
echo sanitize_style_input( "#000000;" );