PHP validate ip

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Added by tamos on May-22-2007, 5:15 pm

This function uses regex to determine if a given string is a valid ip or not. Returns TRUE or FALSE

function valid_ip($ip)
{
	return ( ! preg_match( "/^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$/", $ip)) ? FALSE : TRUE;
}

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