<?php // Everything you enter here will be executed by our servers. Try it! if(preg_match("/^[0-9]+$/", '123')){ echo 'true'; } else{ echo 'false'; } if(preg_match("/^[0-9]+$/", '123.0')){ echo 'true'; } else{ echo 'false'; } if(preg_match("/^[0-9]+$/", '123,0')){ echo 'true'; } else{ echo 'false'; } if(preg_match("/^[0-9]+$/", '123aab0')){ echo 'true'; } else{ echo 'false'; } ?>
You have javascript disabled. You will not be able to edit any code.