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<?php $data = array( 'field1' => 1, 'field2' => 2, 'field3' => 3, 'field4' => 4 ); $filter = array('field2', 'field3'); $filtered = array_flip(array_intersect_key(array_flip($filter), $data)); var_dump($filtered);
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, 7.2.29 - 7.2.33, 7.3.12 - 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(2) { [0]=> string(6) "field2" [1]=> string(6) "field3" }
Output for 5.0.0 - 5.0.5
Fatal error: Call to undefined function array_intersect_key() in /in/e6c60 on line 11
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: array_intersect_key() in /in/e6c60 on line 11
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/e6c60 on line 11
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: array_intersect_key() in /in/e6c60 on line 11
preferences:
248.19 ms | 401 KiB | 311 Q