3v4l.org

run code in 500+ PHP versions simultaneously
<?php $data = [ 1 => ['symbol' => 'salad'], 2 => ['symbol' => 'wine'], 3 => ['symbol' => 'beer'] ]; echo join(", ", array_map( fn($v) => "{$v}bar", array_column($data, 'symbol') ) );

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23.89 ms | 476 KiB | 4 Q