PHP/String/is string

Implementing Custom Type Hinting

   <source lang="html4strict">

<?php <?php function many_hints($int, $flt, $str) {

   if (!(is_integer($int))) {
       trigger_error("$int is not of type integer", E_USER_ERROR);
   }
   if (!(is_float($flt))) {
       trigger_error("$flt is not of type float", E_USER_ERROR);
   }
   if (!(is_string($str))) {
       trigger_error("$str is not of type integer", E_USER_ERROR);
   }
   return ($int * $flt) . " " . $str;

}

echo "

", many_hints(1992, .042, "dollars owed"), "

"; echo "

", many_hints("bob", 3, true), "

";

?>

 </source>