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run code in 300+ PHP versions simultaneously
<?php $b = array(array('id' => 1, 'fid' => 2), array('id' => 2, 'fid' => 2)); function a(array $data) { var_dump(func_get_args()); } a($b, 'fid', 'id'); var_dump($map);

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42.09 ms | 402 KiB | 5 Q