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<?php $url = "https://mail.google.com/mail/u/1/#inbox"; $regexp = "/(https?\:\/\/)?/"; preg_match($regexp, $url, $matches); var_dump($matches);
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { [0]=> string(8) "https://" [1]=> string(8) "https://" }

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