如何是php判断是内网访问, 还是外网访问呢? 废话不多说, 贴码。

判断内网ip

代码如下

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function is_internal_id($ip_address)
{

    $get_ip_number = function($ip)
    {
        $ip_segment = explode('.', $ip);
        if(!is_array($ip_segment) || count($ip_segment) != 4)
            return -1;

        $ip_num = $ip_segment[0] * 256 * 256 * 256 + $ip_segment[1] * 256 * 256 + $ip_segment[2] * 256 + $ip_segment[3];
        return $ip_num;
    };

    $process_ip = $get_ip_number($ip_address);

    /**
     * 私有IP：A类  10.0.0.0    -10.255.255.255
     *       B类  172.16.0.0  -172.31.255.255
     *       C类  192.168.0.0 -192.168.255.255
     *       D类   127.0.0.0   -127.255.255.255(环回地址)
     */
    $a_begin = $get_ip_number("10.0.0.0");
    $a_end = $get_ip_number("10.255.255.255");
    if($process_ip >= $a_begin && $process_ip <= $a_end)
        return true;

    $b_begin = $get_ip_number("172.16.0.0");
    $b_end = $get_ip_number("172.31.255.255");
    if($process_ip >= $b_begin && $process_ip <= $b_end)
        return true;

    $c_begin = $get_ip_number("192.168.0.0");
    $c_end = $get_ip_number("192.168.255.255");
    if($process_ip >= $c_begin && $process_ip <= $c_end)
        return true;

    $d_begin = $get_ip_number("127.0.0.0");
    $d_end = $get_ip_number("127.255.255.255");
    if($process_ip >= $d_begin && $process_ip <= $d_end)
        return true;

    return false;
}

PHP 自带判断私有ip 方法

代码如下

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function is_private_ip($ip) { 
return !filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE); 
}

判断Mobile,还是pc

代码如下

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function ismobile() {
$is_mobile = '0';

if(preg_match('/(android|up.browser|up.link|mmp|symbian|smartphone|midp|wap|phone)/i', strtolower($_SERVER['HTTP_USER_AGENT']))) {
    $is_mobile=1;
}

if((strpos(strtolower($_SERVER['HTTP_ACCEPT']),'application/vnd.wap.xhtml+xml')>0) or ((isset($_SERVER['HTTP_X_WAP_PROFILE']) or isset($_SERVER['HTTP_PROFILE'])))) {
    $is_mobile=1;
}

$mobile_ua = strtolower(substr($_SERVER['HTTP_USER_AGENT'],0,4));
$mobile_agents = array('w3c ','acs-','alav','alca','amoi','andr','audi','avan','benq','bird','blac','blaz','brew','cell','cldc','cmd-','dang','doco','eric','hipt','inno','ipaq','java','jigs','kddi','keji','leno','lg-c','lg-d','lg-g','lge-','maui','maxo','midp','mits','mmef','mobi','mot-','moto','mwbp','nec-','newt','noki','oper','palm','pana','pant','phil','play','port','prox','qwap','sage','sams','sany','sch-','sec-','send','seri','sgh-','shar','sie-','siem','smal','smar','sony','sph-','symb','t-mo','teli','tim-','tosh','tsm-','upg1','upsi','vk-v','voda','wap-','wapa','wapi','wapp','wapr','webc','winw','winw','xda','xda-');

if(in_array($mobile_ua,$mobile_agents)) {
    $is_mobile=1;
}

if (isset($_SERVER['ALL_HTTP'])) {
    if (strpos(strtolower($_SERVER['ALL_HTTP']),'OperaMini')>0) {
        $is_mobile=1;
    }
}

if (strpos(strtolower($_SERVER['HTTP_USER_AGENT']),'windows')>0) {
    $is_mobile=0;
}

return $is_mobile;
}

var_dump(ismobile());