- ^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$
1400阅读 1评论2014-03-20 yestreenstars
分类：LINUX
protected function _valid_ipv4($ip) <br /> { <br /> $ip_segments = explode('.', $ip); <br /> <br /> // Always 4 segments needed <br /> if (count($ip_segments) !== 4) <br /> { <br />