3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "1385|1385|1385|1373|1373|1385|1373|1373|1373"; $b = explode("|", $a); $c = []; foreach($b as $id){ if (!in_array($id, $b)) $c[] = $id; } var_dump(join("|", $c));

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28.91 ms | 402 KiB | 5 Q