初始化

api/dwzrec/counter.dat

@@ -0,0 +1 @@
+1

api/dwzrec/index.php

@@ -0,0 +1,54 @@
+<?php
+     $counter = intval(file_get_contents("counter.dat"));  
+     $_SESSION['#'] = true;  
+     $counter++;  
+     $fp = fopen("counter.dat","w");  
+     fwrite($fp, $counter);  
+     fclose($fp); 
+ ?>
+ 
+<?php
+
+
+header('Access-Control-Allow-Origin:*');
+header('Content-type:application/json; charset=utf-8');
+!empty($_GET['url']) ? $api = $_GET['url'] : exit(json_encode([
+    'code'=>202,
+    "msg"=>"网址不能为空"
+],JSON_UNESCAPED_UNICODE));
+/*
+ * 请求
+ */
+$json = myCurl($api);
+/*
+ * 判断
+ */
+if($json){
+    echo json_encode(array('code'=>200,'dwz'=>$api,'rec'=>$json),JSON_PRETTY_PRINT|JSON_UNESCAPED_UNICODE);
+} else {
+    echo json_encode(array('code'=>201,'msg'=>'短网址还原失败'),JSON_PRETTY_PRINT|JSON_UNESCAPED_UNICODE);
+}
+/***
+ * 万能短网址还原函数
+ * @param $url 短网址
+ * @return 原始网址 | 空（还原失败或非短网址）
+ */
+function myCurl($url) {
+    $curl = curl_init();
+    curl_setopt($curl, CURLOPT_URL, $url);
+    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
+    curl_setopt($curl, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:70.0) Gecko/20100101 Firefox/70.0');
+    curl_setopt($curl, CURLOPT_HEADER, true);
+    curl_setopt($curl, CURLOPT_NOBODY, false);
+    curl_setopt($curl, CURLOPT_TIMEOUT, 15);
+    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
+    curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, 2);
+    curl_setopt($curl, CURLOPT_ENCODING, 'gzip');
+    $data = curl_exec($curl);
+    $curlInfo = curl_getinfo($curl);
+    curl_close($curl);
+    if($curlInfo['http_code'] == 301 || $curlInfo['http_code'] == 302) {
+        return $curlInfo['redirect_url'];
+    }
+    return '';
+}