Online PHP editor | output for cCsoJ

@ 2015-11-18T10:44:07Z

<?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
);

function return1($a,$b) {
    if ($a->attr == $b->attr) {
        return 0;
    } else {
        return 1;
    }
}

function returnNeg1($a,$b) {
    if ($a->attr == $b->attr) {
        return 0;
    } else {
        return -1;
    }
}

//$diff1 = array_diff($array1, $array2);
$diff2 = array_udiff($array1, $array2, 'returnNeg1');
$diff3 = array_udiff($array1, $array2, 'return1');

//$int = array_intersect($array1, $array2);
$int2 = array_uintersect($array1, $array2, 'returnNeg1');
$int3 = array_uintersect($array1, $array2, 'return1');

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

//var_dump($int1);
var_dump($int2);
var_dump($int3);

Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7: array(1) { [1]=> object(stdClass)#2 (1) { ["attr"]=> string(4) "Jane" } } array(2) { [0]=> object(stdClass)#1 (1) { ["attr"]=> string(3) "Rod" } [2]=> object(stdClass)#3 (1) { ["attr"]=> string(6) "Freddy" } } array(2) { [0]=> object(stdClass)#1 (1) { ["attr"]=> string(3) "Rod" } [2]=> object(stdClass)#3 (1) { ["attr"]=> string(6) "Freddy" } } array(1) { [1]=> object(stdClass)#2 (1) { ["attr"]=> string(4) "Jane" } }
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40: array(2) { [0]=> object(stdClass)#1 (1) { ["attr"]=> string(3) "Rod" } [2]=> object(stdClass)#3 (1) { ["attr"]=> string(6) "Freddy" } } array(1) { [2]=> object(stdClass)#3 (1) { ["attr"]=> string(6) "Freddy" } } array(1) { [1]=> object(stdClass)#2 (1) { ["attr"]=> string(4) "Jane" } } array(2) { [0]=> object(stdClass)#1 (1) { ["attr"]=> string(3) "Rod" } [1]=> object(stdClass)#2 (1) { ["attr"]=> string(4) "Jane" } }

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