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<?php $a1 = [ ['name' => 'mike', 'age' => 18], ['name' => 'james', 'age' => 22], ['name' => 'sarah', 'age' => 35], ['name' => 'ken', 'age' => 29], ]; $a2 = [22, 25, 35, 40]; var_export( array_filter($a1, fn($row) => in_array($row['age'], $a2)) );
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
array ( 1 => array ( 'name' => 'james', 'age' => 22, ), 2 => array ( 'name' => 'sarah', 'age' => 35, ), )
Output for 7.3.33
Parse error: syntax error, unexpected '=>' (T_DOUBLE_ARROW), expecting ')' in /in/oKRGn on line 13
Process exited with code 255.
Output for 5.6.40
Parse error: syntax error, unexpected '=>' (T_DOUBLE_ARROW) in /in/oKRGn on line 13
Process exited with code 255.

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