3v4l.org

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<?php $lines = [ "need 4 speed", "4 speed", "speed 4", "4speed", "speed4", "speed2car", "need 4speed", "need4 speed", ]; var_export( preg_replace("~(?<= |^)\d+ | \d+(?= |$)~", '', $lines) );

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21.74 ms | 405 KiB | 5 Q