Online PHP editor | output for ej3Ue

@ 2015-11-18T10:40:20Z

<?php

$obj1 = new stdClass();
$obj1->attr = 'Rod';

$obj2 = new stdClass();
$obj2->attr = 'Jane';

$obj3 = new stdClass();
$obj3->attr = 'Freddy';

$array1 = array(
    $obj1,
    $obj2,
    $obj3
);

$array2 = array(
    $obj1,
    $obj3,
    $obj2
);

$diff1 = array_diff($array1, $array2);
$diff2 = array_udiff($array1, $array2, function($a,$b) {
    if ($a->attr == $b->attr) {
        return 0;
    } else {
        return -1;
    }
});

$diff3 = array_udiff($array1, $array2, function($a,$b) {
    if ($a->attr == $b->attr) {
        return 0;
    } else {
        return 1;
    }
});

var_dump($diff1);
var_dump($diff2);
var_dump($diff3);

Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Fatal error: Uncaught Error: Object of class stdClass could not be converted to string in /in/ej3Ue:24 Stack trace: #0 /in/ej3Ue(24): array_diff(Array, Array) #1 {main} thrown in /in/ej3Ue on line 24
Process exited with code 255.
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33: Recoverable fatal error: Object of class stdClass could not be converted to string in /in/ej3Ue on line 24
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33: Catchable fatal error: Object of class stdClass could not be converted to string in /in/ej3Ue on line 24
Process exited with code 255.

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