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<?php $arr = array(); $arr['i1']['val1'] = 99; $arr['i1']['val2'] = 100; $arr['i2']['val1'] = 89; $arr['i2']['val2'] = 101; function cmp($a, $b) { global $arr; if ($arr[$a]['val2'] > $arr[$b]['val2']) { return 1; } if ($arr[$q]['val2'] < $arr[$b]['val2']) { return -1; } return 0; } if (uksort($arr, 'cmp')) { echo "success"; } else { echo "failure"; } print_r($arr);
Output for 8.3.4 - 8.3.6
Warning: Undefined variable $q in /in/mnIWP on line 16 Warning: Undefined array key "" in /in/mnIWP on line 16 Warning: Trying to access array offset on null in /in/mnIWP on line 16 successArray ( [i1] => Array ( [val1] => 99 [val2] => 100 ) [i2] => Array ( [val1] => 89 [val2] => 101 ) )
Output for 8.3.0 - 8.3.3
Warning: Undefined array key "i1" in /in/mnIWP on line 15 Warning: Trying to access array offset on null in /in/mnIWP on line 15 Warning: Undefined array key "i2" in /in/mnIWP on line 15 Warning: Trying to access array offset on null in /in/mnIWP on line 15 Warning: Undefined variable $q in /in/mnIWP on line 16 Warning: Undefined array key "" in /in/mnIWP on line 16 Warning: Trying to access array offset on null in /in/mnIWP on line 16 Warning: Undefined array key "i2" in /in/mnIWP on line 16 Warning: Trying to access array offset on null in /in/mnIWP on line 16 successArray ( [i1] => Array ( [val1] => 99 [val2] => 100 ) [i2] => Array ( [val1] => 89 [val2] => 101 ) )
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18
Warning: Undefined variable $q in /in/mnIWP on line 16 Warning: Undefined array key "" in /in/mnIWP on line 16 Warning: Trying to access array offset on value of type null in /in/mnIWP on line 16 successArray ( [i1] => Array ( [val1] => 99 [val2] => 100 ) [i2] => Array ( [val1] => 89 [val2] => 101 ) )
Output for 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
Notice: Undefined variable: q in /in/mnIWP on line 16 Notice: Undefined index: in /in/mnIWP on line 16 Notice: Trying to access array offset on value of type null in /in/mnIWP on line 16 successArray ( [i1] => Array ( [val1] => 99 [val2] => 100 ) [i2] => Array ( [val1] => 89 [val2] => 101 ) )
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.11, 5.3.0 - 5.3.1, 7.3.32 - 7.3.33, 7.4.26
successArray ( [i1] => Array ( [val1] => 99 [val2] => 100 ) [i2] => Array ( [val1] => 89 [val2] => 101 ) )
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31
Notice: Undefined variable: q in /in/mnIWP on line 16 Notice: Undefined index: in /in/mnIWP on line 16 successArray ( [i1] => Array ( [val1] => 99 [val2] => 100 ) [i2] => Array ( [val1] => 89 [val2] => 101 ) )
Output for 5.2.12 - 5.2.17, 5.3.2 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
Warning: uksort(): Array was modified by the user comparison function in /in/mnIWP on line 20 failureArray ( [i1] => Array ( [val1] => 99 [val2] => 100 ) [i2] => Array ( [val1] => 89 [val2] => 101 ) )
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256.56 ms | 403 KiB | 360 Q