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<?php $url = filter_var('http://ya.ru', FILTER_VALIDATE_URL); $n = filter_var(12, FILTER_VALIDATE_INTEGER); var_dump($url);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Undefined constant "FILTER_VALIDATE_INTEGER" in /in/89lWj:5 Stack trace: #0 {main} thrown in /in/89lWj on line 5
Process exited with code 255.

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