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<?php $str = "127.0.0.1 domain.com #this is a comment"; preg_match('/^(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})[ \t]+([^ #]+).+$/',$str,$arr); print_R($arr);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => 127.0.0.1 domain.com #this is a comment [1] => 127.0.0.1 [2] => domain.com )

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