usort(): Array was modified by the user comparison function

Question

I have a web application that runs fine on our Linux servers but when running on Mac OS with the Zend Community Edition Server using PHP 5.3 we get the error:

Answer 1

To resolve this issue we can handle as below

1) use error_reporting

$a = array('id' => 2,'val' => 3, 'ind' => 3);
$errorReporting = error_reporting(0);
usort($a);
error_reporting($errorReporting);

2) use @usort($a);

$a = array('id' => 2,'val' => 3, 'ind' => 3);
@usort($a);