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run code in 200+ php & hhvm versions
Bugs & Features
<?php function key_compare_func($key1, $key2) { if ($key1 == $key2) return 0; else if ($key1 > $key2) return 1; else return -1; } $a=new stdClass; $a->{"0"}=1; $a->n=2; var_dump(array_diff_key((array)$a, [0])); var_dump(array_diff_ukey((array)$a, [0], 'key_compare_func'));
based on Ui1jq
Output for 7.2.0
array(1) { ["n"]=> int(2) } array(0) { }
Output for 5.4.10 - 7.1.10
array(2) { ["0"]=> int(1) ["n"]=> int(2) } array(0) { }
Output for 5.3.20 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/rNbGX on line 16
Process exited with code 255.