使用cURL保存Facebook个人资料图片

本文介绍了使用cURL保存Facebook个人资料图片的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我尝试使用CURL在Facebook上保存用户个人资料图片。当我使用下面的代码，我保存一个jpeg图像，但它有零个字节。但如果我将网址值交换为 https：// fbcdn-profile -a.akamaihd/hprofile-ak-snc4/211398_812269356_2295463_n.jpg ，其中 http：// graph.facebook/ 。 $ user_id。 '/ picture？type = large重定向浏览器，图像被保存没有问题。我在这里做错了什么？

I'm trying to save a users profile image on facebook using CURL. When I use the code below, I save a jpeg image but it has zero bytes in it. But if I exchange the url value to fbcdn-profile-a.akamaihd/hprofile-ak-snc4/211398_812269356_2295463_n.jpg, which is where graph.facebook/' . $user_id . '/picture?type=large redirects the browser, the image is saved without a problem. What am I doing wrong here?

<?php $url = 'graph.facebook/' . $user_id . '/picture?type=large'; $file_handler = fopen('pic_facebook.jpg', 'w'); $curl = curl_init($url); curl_setopt($curl, CURLOPT_FILE, $file_handler); curl_setopt($curl, CURLOPT_HEADER, false); curl_exec($curl); curl_close($curl); fclose($file_handler);

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推荐答案

有一个重定向，所以你必须添加这个选项curl

There is a redirect, so you have to add this option for curl

// safemode if off: curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);

但如果您使用安全模式，则：

but if you have safemode if on, then:

// safemode if on: <?php function curl_redir_exec($ch) { static $curl_loops = 0; static $curl_max_loops = 20; if ($curl_loops++ >= $curl_max_loops) { $curl_loops = 0; return FALSE; } curl_setopt($ch, CURLOPT_HEADER, true); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); $data = curl_exec($ch); @list($header, $data) = @explode("\n\n", $data, 2); $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE); if ($http_code == 301 || $http_code == 302) { $matches = array(); preg_match('/Location:(.*?)\n/', $header, $matches); $url = @parse_url(trim(array_pop($matches))); if (!$url) { //couldn't process the url to redirect to $curl_loops = 0; return $data; } $last_url = parse_url(curl_getinfo($ch, CURLINFO_EFFECTIVE_URL)); if (!$url['scheme']) $url['scheme'] = $last_url['scheme']; if (!$url['host']) $url['host'] = $last_url['host']; if (!$url['path']) $url['path'] = $last_url['path']; $new_url = $url['scheme'] . '://' . $url['host'] . $url['path'] . (@$url['query']?'?'.$url['query']:''); return $new_url; } else { $curl_loops=0; return $data; } } function get_right_url($url) { $curl = curl_init($url); curl_setopt($curl, CURLOPT_HEADER, false); curl_setopt($curl, CURLOPT_RETURNTRANSFER, true); return curl_redir_exec($curl); } $url = 'graph.facebook/' . $user_id . '/picture?type=large'; $file_handler = fopen('pic_facebook.jpg', 'w'); $curl = curl_init(get_right_url($url)); curl_setopt($curl, CURLOPT_FILE, $file_handler); curl_setopt($curl, CURLOPT_HEADER, false); curl_exec($curl); curl_close($curl); fclose($file_handler);