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run code in 300+ PHP versions simultaneously
<?php $string = 'test' . chr(0) . "\n" . 'Test' . "\r\n"; $result = mb_ereg_replace('(.*(\0)|(\r)|(\n)|(\r\n).*)', '\\\1', $string); var_dump($result);

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56.72 ms | 402 KiB | 5 Q