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41 lines
1.3 KiB
41 lines
1.3 KiB
4 years ago
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<?php
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/*
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* web相关函数
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*/
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function get_client_ip() {
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$arr_ip_header = array(
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"HTTP_CLIENT_IP",
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"HTTP_X_FORWARDED_FOR",
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"REMOTE_ADDR",
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"HTTP_CDN_SRC_IP",
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"HTTP_PROXY_CLIENT_IP",
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"HTTP_WL_PROXY_CLIENT_IP"
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);
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$client_ip = 'unknown';
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foreach ($arr_ip_header as $key) {
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if (!empty($_SERVER[$key]) && strtolower($_SERVER[$key]) != "unknown") {
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$client_ip = $_SERVER[$key];
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break;
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}
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}
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if ($pos = strpos($client_ip, ',')) {
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$client_ip = substr($client_ip, $pos + 1);
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}
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return $client_ip;
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}
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function get_host() {
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$protocol = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off' || $_SERVER['SERVER_PORT'] === 443) ? 'https://' : 'http://';
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if (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) &&
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strlen($_SERVER['HTTP_X_FORWARDED_PROTO']) > 0) {
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$protocol = $_SERVER['HTTP_X_FORWARDED_PROTO'] . '://';
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}
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$url_host = $_SERVER['SERVER_NAME'] . ($_SERVER['SERVER_PORT'] == '80' ? '' : ':' . $_SERVER['SERVER_PORT']);
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$host = isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : $url_host;
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$host = isset($_SERVER['HTTP_X_FORWARDED_HOST']) ? $_SERVER['HTTP_X_FORWARDED_HOST'] : $host; //proxy
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return $protocol . $host;
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}
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