Online PHP editor | output for C8KqP

<?php $bads = array('+11','- 68','[img','$cool', '# hash'); // disallowed full 'words'; if one of them appears in string, the function should return true $s= 'This is test to show if or $cool works but it does not'; //another example to test: $s= 'This - 68 is # hash not'; if(contains($s,$bads)) { echo 'Contains! '; } #### FUNCTION ### function contains($str, $bads) { //var_dump($bads); $b = "/"; foreach($bads as $a) { if(substr($a,0,1) == "$"){ $b .= preg_quote($a,'/'). "|"; }else{ $b .= "\b" . preg_quote($a,'/'). "\b|"; } } $b = substr($b, 0,-1) ."/"; echo $b; if(preg_match($b,$str, $m)){ var_dump($m); return true; } return false; }