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<?php function compare($a, $b) { // echo("$a : $b\n"); return ($a == $b ? 0 : 1); // return strcmp($a, $b); } $a = array('11', '21', '31', '41', '11'); $b = array('12', '22', '32', '42', '52', '11'); var_dump(array_udiff($a, $b, 'compare')); echo "\n\n"; $a_new = array_combine($a, array_fill(0, count($a), 1)); $b_new = array_combine($b, array_fill(0, count($b), 1)); var_dump(array_diff_uassoc($a_new, $b_new, 'compare')); echo "\n\n";
Output for 5.2.15 - 5.2.17, 5.3.4 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
array(5) { [0]=> string(2) "11" [1]=> string(2) "21" [2]=> string(2) "31" [3]=> string(2) "41" [4]=> string(2) "11" } array(3) { [21]=> int(1) [31]=> int(1) [41]=> int(1) }
Output for 5.2.6 - 5.2.14, 5.3.0 - 5.3.3
array(3) { [1]=> string(2) "21" [2]=> string(2) "31" [3]=> string(2) "41" } array(3) { [21]=> int(1) [31]=> int(1) [41]=> int(1) }
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.5
array(5) { [0]=> string(2) "11" [1]=> string(2) "21" [2]=> string(2) "31" [3]=> string(2) "41" [4]=> string(2) "11" } array(4) { [11]=> int(1) [21]=> int(1) [31]=> int(1) [41]=> int(1) }
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: array_udiff() in /in/s8aVL on line 12
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Fatal error: Call to undefined function: array_udiff() in /in/s8aVL on line 12
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: array_udiff() in /in/s8aVL on line 12

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