3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ ['a' => 1, 'b' => 'x', 'c' => true], ['b' => 'y', 'a' => '2', 'c' => false], ['c' => null, 'b' => 'z', 'a' => 3] ]; var_export( array_combine( array_keys($array[array_key_first($array)]), array_map(null, ...$array) ) );

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