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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) { static $called = 0; echo $called++, "\n"; if ($called > 2) die('overflow'); if ($GLOBALS['arr'][$a]['val2'] > $GLOBALS['arr'][$b]['val2']) { return 1; } if ($GLOBALS['arr'][$q]['val2'] < $GLOBALS['arr'][$b]['val2']) { return -1; } return 0; } if (uksort($arr, 'cmp')) { echo "success\n"; } else { echo "failure\n"; } print_r($arr);
Output for 8.3.4 - 8.3.6
0 Warning: Undefined variable $q in /in/auZTO on line 17 Warning: Undefined array key "" in /in/auZTO on line 17 Warning: Trying to access array offset on null in /in/auZTO on line 17 success Array ( [i1] => Array ( [val1] => 99 [val2] => 100 ) [i2] => Array ( [val1] => 89 [val2] => 101 ) )
Output for 8.3.0 - 8.3.3
0 Warning: Undefined array key "i1" in /in/auZTO on line 16 Warning: Trying to access array offset on null in /in/auZTO on line 16 Warning: Undefined array key "i2" in /in/auZTO on line 16 Warning: Trying to access array offset on null in /in/auZTO on line 16 Warning: Undefined variable $q in /in/auZTO on line 17 Warning: Undefined array key "" in /in/auZTO on line 17 Warning: Trying to access array offset on null in /in/auZTO on line 17 Warning: Undefined array key "i2" in /in/auZTO on line 17 Warning: Trying to access array offset on null in /in/auZTO on line 17 success Array ( [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
0 Warning: Undefined variable $q in /in/auZTO on line 17 Warning: Undefined array key "" in /in/auZTO on line 17 Warning: Trying to access array offset on value of type null in /in/auZTO on line 17 success Array ( [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
0 Notice: Undefined variable: q in /in/auZTO on line 17 Notice: Undefined index: in /in/auZTO on line 17 Notice: Trying to access array offset on value of type null in /in/auZTO on line 17 success Array ( [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 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.3.32 - 7.3.33, 7.4.26
0 success Array ( [i1] => Array ( [val1] => 99 [val2] => 100 ) [i2] => Array ( [val1] => 89 [val2] => 101 ) )
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.31
0 Notice: Undefined variable: q in /in/auZTO on line 17 Notice: Undefined index: in /in/auZTO on line 17 success Array ( [i1] => Array ( [val1] => 99 [val2] => 100 ) [i2] => Array ( [val1] => 89 [val2] => 101 ) )
preferences:
207.21 ms | 403 KiB | 316 Q