Use a try statement to catch exception in PHP

<?php// ww  w  .  j a va 2s .c  o  m
  //derive math exception from base class
  class mathException extends Exception
  {
    public $type;

    public function __construct($type)
    {
      //get filename and line number
      parent::Exception();
      $this->type = $type;
    }
  }

  //try a division
  $numerator = 1;
  $denominator = 0;
  try
  {
    //throw exception on divide by zero
    if($denominator == 0)
    {
      throw new mathException("Division by zero");
    }
    print($numerator/$denominator);
  }
  catch(mathException $e)
  {
    //we caught a math exception
    print("Caught Math Exception ($e->type) in " .
    "$e->file on line $e->line<br>\n");
  }
  catch(Exception $e)
  {
    //we caught some other type of exception
    print("Caught Exception in " .
    $e->file() . " on line " .
    $e->line() . "<br>\n");
  }
?>