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PHP CURL内存泄露的解决方法
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curl配置平淡无奇，长时间运行发现一个严重问题，内存泄露！不论用单线程和多线程都无法避免！是curl访问https站点的时候有bug！
内存泄露可以通过linux的top命令发现，使用php函数memory_get_usage()不会发现。
经过反复调试找到解决办法，curl配置添加如下几项解决问题：
复制代码 代码如下:
[CURLOPT_HTTPPROXYTUNNEL] = true;
[CURLOPT_SSL_VERIFYPEER] = false;
[CURLOPT_SSL_VERIFYHOST] = false;
CURLOPT_HTTPPROXYTUNNEL具体说明stackoverflow上有，直接贴原文：
Without CURLOPT_HTTPPROXYTUNNEL
Without CURLOPT_HTTPPROXYTUNNEL : You just use the proxy address/port as a destination of your HTTP request. The proxy will read the HTTP headers of your query, forward your request to the destination (with your HTTP headers) and then write the response to you.
Example steps :
1）HTTP GET / sent to 1.1.1.1 (proxy)
2）1.1.1.1 receive request and parse header for getting the final destination of your HTTP request.
3）1.1.1.1 forward your query and headers to (destination in request headers).
4）1.1.1.1 write back to you the response receive from
With CURLOPT_HTTPPROXYTUNNEL
With CURLOPT_HTTPPROXYTUNNEL : You ask the proxy to open a direct binary connection (like HTTPS, called a TCP Tunnel) directly to your destination by doing a CONNECT HTTP request. When the tunnel is ok, the proxy write you back a HTTP/1.1 200 Connection established. When it received your browser start to query the destination directly : The proxy does not parse HTTP headers and theoretically does not read tunnel datas, it just forward it, thats why it is called a tunnel !
Example steps :
1）HTTP CONNECT sent to 1.1.1.1
2）1.1.1.1 receive HTTP CONNECT and get the ip/port of your final destination (header field of HTTP CONNECT).
3）1.1.1.1 open a TCP Socket by doing a TCP handshake to your destination 2.22.63.73:80 (ip/port of ).
4）1.1.1.1 Make a tunnel by piping your TCP Socket to the TCP Socket opened to 2.22.63.73:80and then write you back HTTP/1.1 200 Connection established witch means that your client can now make your query throw the TCP Tunnel (TCP datas received will be transmited directly to server and vice versa). ;
因为，PHP CURL库默认1024字节的长度不等待数据的返回，所以你那段代码需增加一项配置：
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Expect:'));
给你一个更全面的封装方法：
function req_curl($url, $status = null, $options = array())
{
$res = '';
$options = array_merge(array(
'follow_local' = true,
'timeout' = 30,
'max_redirects' = 4,
'binary_transfer' = false,
'include_header' = false,
'no_body' = false,
'cookie_location' = dirname(__FILE__) . '/cookie',
'useragent' = 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1',
'post' = array() ,
'referer' = null,
'ssl_verifypeer' = 0,
'ssl_verifyhost' = 0,
'headers' = array(
'Expect:'
) ,
'auth_name' = '',
'auth_pass' = '',
'session' = false
) , $options);
$options['url'] = $url;
$s = curl_init();
if (!$s) return false;
curl_setopt($s, CURLOPT_URL, $options['url']);
curl_setopt($s, CURLOPT_HTTPHEADER, $options['headers']);
curl_setopt($s, CURLOPT_SSL_VERIFYPEER, $options['ssl_verifypeer']);
curl_setopt($s, CURLOPT_SSL_VERIFYHOST, $options['ssl_verifyhost']);
curl_setopt($s, CURLOPT_TIMEOUT, $options['timeout']);
curl_setopt($s, CURLOPT_MAXREDIRS, $options['max_redirects']);
curl_setopt($s, CURLOPT_RETURNTRANSFER, true);
curl_setopt($s, CURLOPT_FOLLOWLOCATION, $options['follow_local']);
curl_setopt($s, CURLOPT_COOKIEJAR, $options['cookie_location']);
curl_setopt($s, CURLOPT_COOKIEFILE, $options['cookie_location']);
if (!empty($options['auth_name']) is_string($options['auth_name']))
{
curl_setopt($s, CURLOPT_USERPWD, $options['auth_name'] . ':' . $options['auth_pass']);
}
if (!empty($options['post']))
{
curl_setopt($s, CURLOPT_POST, true);
curl_setopt($s, CURLOPT_POSTFIELDS, $options['post']);
//curl_setopt($s, CURLOPT_POSTFIELDS, array('username' = 'aeon', 'password' = '111111'));
}
if ($options['include_header'])
{
curl_setopt($s, CURLOPT_HEADER, true);
}
if ($options['no_body'])
{
curl_setopt($s, CURLOPT_NOBODY, true);
}
if ($options['session'])
{
curl_setopt($s, CURLOPT_COOKIESESSION, true);
curl_setopt($s, CURLOPT_COOKIE, $options['session']);
}
curl_setopt($s, CURLOPT_USERAGENT, $options['useragent']);
curl_setopt($s, CURLOPT_REFERER, $options['referer']);
$res = curl_exec($s);
$status = curl_getinfo($s, CURLINFO_HTTP_CODE);
curl_close($s);
return $res;
}
用urlencode编码试试，这样可以传递特殊字符并且防止一些奇怪的错误信息
你好，一般有俩原因：
①接口本身数据不完整；
②接口中数据量过大，可以调整一下服务器配置，PHP配置文件：memory_limit 每个PHP页面所吃掉的最大内存
