PHP implements simulation of WeChat public account developer mode

$url = 'http://xxxx.com/test/aaaa/index.php';//开发者URL $token = 'weixin';//TOKEN $timestamp = $_GET["timestamp"]; $nonce = $_GET["nonce"]; $tmpArr = array($token, $timestamp, $nonce); sort($tmpArr, SORT_STRING); $tmpStr = implode( $tmpArr ); $tmpStr = sha1( $tmpStr ); $url .= stripos($url, '?') === false ? '?' : '&'; $url .= http_build_query(array( 'signature' => $tmpStr, 'timestamp' => $timestamp, 'nonce' => $nonce, )); //echo $url; //如果不是项目相关的事件 $returnStr返回空 $header = array(); //这个要加上啊 $header[] = "Content-type: text/xml";//定义content-type为xml $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_HTTPHEADER, $header); curl_setopt($ch, CURLOPT_POST, 1); curl_setopt($ch, CURLOPT_POSTFIELDS, $postStr); //curl_setopt($ch, CURLOPT_POSTFIELDS, $pp); $response = curl_exec($ch); if(curl_errno($ch)){ error_log (curl_error($ch)); } curl_close($ch); echo $response;//返回给微信服务器