Curl.class.php如何实现高效长尾词查询？

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php

public function __construct($url) { $this->url=$url; }

public function setMethod($method) { $this->method=$method; }

public function setHeaders($headers) { $this->headers=$headers; }

public function setBody($body) { $this->body=$body; }

public function send() { $ch=curl_init(); curl_setopt($ch, CURLOPT_URL, $this->url); curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $this->method); curl_setopt($ch, CURLOPT_HTTPHEADER, $this->headers); curl_setopt($ch, CURLOPT_POSTFIELDS, $this->body); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); $response=curl_exec($ch); curl_close($ch); return $response; }}?>

Curl.class.php