<?php
$img = imagecreatetruecolor(10, 10);

// POC #1
var_dump(imagecrop($img, array("x" => "a", "y" => 0, "width" => 10, "height" => 10)));

$arr = array("x" => "a", "y" => "12b", "width" => 10, "height" => 10);
var_dump(imagecrop($img, $arr));
print_r($arr);

// POC #2
var_dump(imagecrop($img, array("x" => 0, "y" => 0, "width" => -1, "height" => 10)));

// POC #3
var_dump(imagecrop($img, array("x" => -20, "y" => -20, "width" => 10, "height" => 10)));

// POC #4
var_dump(imagecrop($img, array("x" => 0x7fffff00, "y" => 0, "width" => 10, "height" => 10)));

// bug 66815
var_dump(imagecrop($img, array("x" => 0, "y" => 0, "width" => 65535, "height" => 65535)));
?>