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<?php $arr = [[0,1],[2,3],[4,5]]; var_dump($arr); foreach($arr as $row) { list($val1, $val2) = $row; echo $key .' -> '. $val1 . ',' . $val2 . "\n"; } foreach ($arr as $key => list($val1, $val2)) { echo $key .' -> '. $val1 . ',' . $val2 . "\n"; }
Output for 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(3) { [0]=> array(2) { [0]=> int(0) [1]=> int(1) } [1]=> array(2) { [0]=> int(2) [1]=> int(3) } [2]=> array(2) { [0]=> int(4) [1]=> int(5) } } Warning: Undefined variable $key in /in/N4k2D on line 8 -> 0,1 Warning: Undefined variable $key in /in/N4k2D on line 8 -> 2,3 Warning: Undefined variable $key in /in/N4k2D on line 8 -> 4,5 0 -> 0,1 1 -> 2,3 2 -> 4,5
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.33
array(3) { [0]=> array(2) { [0]=> int(0) [1]=> int(1) } [1]=> array(2) { [0]=> int(2) [1]=> int(3) } [2]=> array(2) { [0]=> int(4) [1]=> int(5) } } Notice: Undefined variable: key in /in/N4k2D on line 8 -> 0,1 Notice: Undefined variable: key in /in/N4k2D on line 8 -> 2,3 Notice: Undefined variable: key in /in/N4k2D on line 8 -> 4,5 0 -> 0,1 1 -> 2,3 2 -> 4,5
Output for 7.3.32 - 7.3.33
array(3) { [0]=> array(2) { [0]=> int(0) [1]=> int(1) } [1]=> array(2) { [0]=> int(2) [1]=> int(3) } [2]=> array(2) { [0]=> int(4) [1]=> int(5) } } -> 0,1 -> 2,3 -> 4,5 0 -> 0,1 1 -> 2,3 2 -> 4,5
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected 'list' (T_LIST) in /in/N4k2D on line 11
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/N4k2D on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/N4k2D on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/N4k2D on line 3
Process exited with code 255.

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