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<?php $array1 = array("a" => array(1)); $array2 = array("b" => array("1")); $a = array(1,2,3,4); $b = array(2,4); $c = array(1,2,3,4); $d = array(2,4); $x = array_flip($a); $y = array_flip($a); print_r($x); print_r($y); $result2 = array_intersect_key($x, $y); // 2 4 $result3 = array_intersect($c,$d); print_r($result2); print_r($result3); ?>
Output for 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, 5.6.8 - 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Array ( [1] => 0 [2] => 1 [3] => 2 [4] => 3 ) Array ( [1] => 0 [2] => 1 [3] => 2 [4] => 3 ) Array ( [1] => 0 [2] => 1 [3] => 2 [4] => 3 ) Array ( [1] => 2 [3] => 4 )
Output for 5.0.0 - 5.0.5
Array ( [1] => 0 [2] => 1 [3] => 2 [4] => 3 ) Array ( [1] => 0 [2] => 1 [3] => 2 [4] => 3 ) Fatal error: Call to undefined function array_intersect_key() in /in/i4cbV on line 15
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Array ( [1] => 0 [2] => 1 [3] => 2 [4] => 3 ) Array ( [1] => 0 [2] => 1 [3] => 2 [4] => 3 ) Fatal error: Call to undefined function: array_intersect_key() in /in/i4cbV on line 15
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Array ( [1] => 0 [2] => 1 [3] => 2 [4] => 3 ) Array ( [1] => 0 [2] => 1 [3] => 2 [4] => 3 ) Fatal error: Call to undefined function: array_intersect_key() in /in/i4cbV on line 15
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Array ( [1] => 0 [2] => 1 [3] => 2 [4] => 3 ) Array ( [1] => 0 [2] => 1 [3] => 2 [4] => 3 ) Fatal error: Call to undefined function: array_intersect_key() in /in/i4cbV on line 15

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