3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a=123; $s="$a"; if(is_numeric($s)==1) die("numerico"); echo "strlen=".strlen($s); for($i=0;$i<strlen($s);$i++) if(is_numeric($s[$i])) echo $s[$i]." in posizione $i"; ?>
based on caBap
Output for 5.6.0 - 5.6.30, hhvm-3.18.5 - 3.22.0, 7.0.0 - 7.3.0beta1
numerico