在allow_url_fopen关闭下读取远程文件

<?php
    $ch = curl_init("http://www.csdn.net/");
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    $str = curl_exec($ch);
    if ($str !== false) {
        // do something with the content
        echo $str;
    }
    curl_close($ch);
?>