[SOLVED] Determining if a variable contains characters otherthan numbers

[cooldude832]

I have a var $var2 and its dynamic off form results.  I want to know how i can determine if $var2 has any non numerical (0-9) entries in it and if it does set a variable off it

like

if($var2=NaN)
{$set="no";}
else
{$set="yes";}

[neel_basu]

<?php
$str = '55';
if(is_numeric($str))
  {
    echo 'Yes';
  }
else
  {
    echo 'No';
  }
?>

It should work.

[cooldude832]

thank you I tried is_int but that didn't get me anywhere