Example how to handle an Exception in PHP?

<?php
/* Function to Throw an Exception */
function checkNum($number) {
    if($number>1) {
        throw new Exception("Value must be 1 or below");
    }
    return true;
}
/* Function to Throw an Exception */

//trigger exception in a "try" block
try {
    checkNum(2);
    //If the exception is thrown, this text will not be shown
    echo 'If you see this, the number is 1 or below';
} catch(Exception $e) {
    echo 'Message: ' .$e->getMessage();
}
?>