123

 <?php
+
+if (!function_exists('http_request')) {
+// curl请求
+    function http_request($url, $timeout = 30, $header = array())
+    {
+        if (!function_exists('curl_init')) {
+            throw new Exception('server not install curl');
+        }
+        $ch = curl_init();
+        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+        curl_setopt($ch, CURLOPT_HEADER, true);
+        curl_setopt($ch, CURLOPT_URL, $url);
+        curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
+        if (!empty($header)) {
+            curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
+        }
+        $data = curl_exec($ch);
+        list($header, $data) = explode("\r\n\r\n", $data);
+        $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+        if ($http_code == 301 || $http_code == 302) {
+            $matches = array();
+            preg_match('/Location:(.*?)\n/', $header, $matches);
+            $url = trim(array_pop($matches));
+            curl_setopt($ch, CURLOPT_URL, $url);
+            curl_setopt($ch, CURLOPT_HEADER, false);
+            $data = curl_exec($ch);
+        }
+
+        if ($data == false) {
+            curl_close($ch);
+        }
+        @curl_close($ch);
+
+        return $data;
+    }
+}
\ No newline at end of file