(Urgent!!)Is it any configuration for php5 excpetion handling

[BrianHo]

The following is the program. If the exception is caught, message of "error is occured" should be shown on the browser too. Right?? but no that message, what's going wrong. I can ensure that it is php5 coz phpinfo.php states it is "php version 5.1.6". Please tell me why it happened and how to solve it. Thank you very much!!!

[code]
<?php

try
{
echo "abcde<br>";
$fish->move('walk');
}
catch (Exception $e) {
echo "error is occured<br>";
echo 'Caught exception: ', $e->getMessage(), "\n";
}

?>



[The display in Browser]
abcde

Fatal error: Call to a member function move() on a non-object in C:\FYP\beweb\AppServ\www\brian\memoryStick\program \testException.php on line 6