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<?php $my_array = ['A1'=>'Data1','A2'=>'Data2','A3'=>'Data3','A4'=>'Data4','A5'=>'Data5']; $allowed = ['0'=>'A1','1'=>'A2','2'=>'A3']; $filtered = array_filter( $my_array, function ($key) use ($allowed) { return in_array($key, $allowed); }, ARRAY_FILTER_USE_KEY ); var_dump($filtered);
Output for 7.1.25 - 7.1.32, 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 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.21, 8.5.0 - 8.5.7
array(3) { ["A1"]=> string(5) "Data1" ["A2"]=> string(5) "Data2" ["A3"]=> string(5) "Data3" }
preferences:
113.33 ms | 1502 KiB | 4 Q