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<?php $input = "2509,2222222"; // Regex number comma number (zero - two) Preg_match("/(\d+),*(\d{0,2})/", $input, $m); Unset($m[0]); // remove full match Echo implode("", $m); // implode parts
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
250922

preferences:
93.05 ms | 1935 KiB | 4 Q