PHP函数获取来源IP
ip()函数根据来源得出IP
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<?php /** * 获取IP */ function ip() { if(getenv('HTTP_CLIENT_IP') && strcasecmp(getenv('HTTP_CLIENT_IP'), 'unknown')) { $ip = getenv('HTTP_CLIENT_IP'); }elseif(getenv('HTTP_X_FORWARDED_FOR') && strcasecmp(getenv('HTTP_X_FORWARDED_FOR'), 'unknown')) { $ip = getenv('HTTP_X_FORWARDED_FOR'); }elseif(getenv('REMOTE_ADDR') && strcasecmp(getenv('REMOTE_ADDR'), 'unknown')) { $ip = getenv('REMOTE_ADDR'); }elseif(isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] && strcasecmp($_SERVER['REMOTE_ADDR'], 'unknown')) { $ip = $_SERVER['REMOTE_ADDR']; } return preg_match ( '/[\d\.]{7,15}/', $ip, $matches ) ? $matches [0] : ''; } |
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