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run code in 300+ PHP versions simultaneously
<?php preg_match( '/(Clients=)([0-9]{1,}),/', "RunUO, Name=Pure Blood, Age=1, Clients=1, Items=110859, Chars=37967, Mem=270972K, Ver=2", $playersOnline ); echo $matches[1]; // 1234
Output for git.master, git.master_jit
Warning: Undefined variable $matches in /in/umSKr on line 3 Warning: Trying to access array offset on value of type null in /in/umSKr on line 3
Output for rfc.property-hooks
Warning: Undefined variable $matches in /in/umSKr on line 3 Warning: Trying to access array offset on null in /in/umSKr on line 3

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