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一个简单的PHP的CURL类

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May 25, 2016 pm 05:15 PM

我写了一个基于CURL的PHP5的类，功能比较简单，比较适合学习用。如果真要应用的话，那绝对推荐Snoopy 太强大了。虽然它不是在curl基础上的。

php代码

<?php
class my_curl {
     
    public function __construct() {
        ! extension_loaded ( &#39;curl&#39; ) && exit ( &#39;CURL扩展未加载，程序终止运行&#39; );
        header ( &#39;Content-Type: text/html; charset=utf-8&#39; );
    }
     
    public function go($url, $vars = &#39;&#39;) {
        $ch = curl_init ();
        $array [CURLOPT_URL] = $url;
        $array [CURLOPT_HEADER] = false;
        $array [CURLOPT_RETURNTRANSFER] = true;
        $array [CURLOPT_FOLLOWLOCATION] = true;
         
        if (! empty ( $vars )) {
            $postfields = $this->render_postfields ( $vars ); //生成urlcode的url
            $array [CURLOPT_POST] = true;
            $array [CURLOPT_POSTFIELDS] = $postfields;
        }
         
        //判断是否有cookie,有的话直接使用
        if ($_COOKIE [&#39;cookie_jar&#39;] || is_file ( $_COOKIE [&#39;cookie_jar&#39;] )) {
            $array [CURLOPT_COOKIEFILE] = $_COOKIE [&#39;cookie_jar&#39;]; //这里判断cookie
        } else {
            $cookie_jar = tempnam ( &#39;/tmp&#39;, &#39;cookie&#39; ); //产生一个cookie文件
            $array [CURLOPT_COOKIEJAR] = $cookie_jar; //写入cookie信息
            setcookie ( &#39;cookie_jar&#39;, $cookie_jar ); //保存cookie路径
        }
        curl_setopt_array ( $ch, $array ); //传入curl参数
        $content = curl_exec ( $ch ); //执行
        curl_close ( $ch );//关闭
        return $content; //返回
    }
     
    protected function render_postfields($vars) {
        foreach ( $vars as $key => $values ) {
            $postdata .= urlencode ( $key ) . "=" . urlencode ( $values ) . "&";
        }
        return $postdata;
    }
}
?>

使用方法

<?php
if($_POST[&#39;email&#39;]&&$_POST[&#39;password&#39;]){
    include &#39;curl_class.php&#39;;
$curl = new my_curl ();
$vars [&#39;email&#39;] = $_POST[&#39;email&#39;];
$vars [&#39;password&#39;] = $_POST[&#39;password&#39;];
//$vars [&#39;done&#39;] = &#39;/&#39;;
//$vars [&#39;submit&#39;] = &#39;登 录&#39;;
echo $curl->go ( &#39;http://www.renren.com/PLogin.do&#39;, $vars );
 
}else{
?>
<html>
    <form action="" class="login-form" id="loginForm" method="post">
        <input type="text" id="email" name="email"/>
        <input type="text" id="password" name="password"/>
        <input type="submit" tabindex="4" value="登录" class="input-submit" id="login">
    </form>
</html>
<?php }?>

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