<?php
$a = array('x' => 1, 'y' => 2, 'z' => 3, 'a' => 4, 'b' => 4);
$b = array('x', 'z', 'a');
$result = array_intersect_key($a, array_flip($b));
print_r($result);
- 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, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 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
(
[x] => 1
[z] => 3
[a] => 4
)
- Output for 5.0.0 - 5.0.5
- Fatal error: Call to undefined function array_intersect_key() in /in/LmeSd on line 6
Process exited with code 255. - Output for 4.4.5 - 4.4.9
- Fatal error: Call to undefined function: array_intersect_key() in /in/LmeSd on line 6
Process exited with code 255. - Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
- Fatal error: Call to undefined function: array_intersect_key() in /in/LmeSd on line 6
Process exited with code 255. - Output for 4.3.0 - 4.3.1
- Fatal error: Call to undefined function: array_intersect_key() in /in/LmeSd on line 6
preferences:
323.46 ms | 401 KiB | 460 Q