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<?php var_dump(filter_var('192.168.0.1', FILTER_VALIDATE_IP, FILTER_FLAG_NO_RES_RANGE)); var_dump(filter_var('192.168.255.255', FILTER_VALIDATE_IP, FILTER_FLAG_NO_RES_RANGE));
Output for git.master, git.master_jit, rfc.property-hooks
string(11) "192.168.0.1" string(15) "192.168.255.255"

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