通过php输入处理上传时减少PHP中的内存消耗

Question

我有运行nginx 1.0.5 + php-cgi(PHP 5.3.6).我需要上传〜1GB文件(必须有1-5个并行上传文件).我试图通过ajax上传创建大文件的上传.一切正常,但PHP每次上传都会占用大量内存.我设置了memory_limit = 200M,但它的上传文件大小约为150MB.如果文件较大 - 上传失败.我可以设置memory_limit越来越大,但我认为这是错误的方式,因为PHP可以吃掉所有内存.我使用这个PHP代码(简化)来处理服务器端的上传:

$input = fopen('php://input', 'rb');
$file = fopen('/tmp/' . $_GET['file'] . microtime(), 'wb');
while (!feof($input)) {
    fwrite($file, fread($input, 102400));
}
fclose($input);
fclose($file);

/etc/nginx/nginx.conf:

user www-data;
worker_processes 100;
pid /var/run/nginx.pid;

events {
        worker_connections 768;
        # multi_accept on;
}

http {

        ##
        # Basic Settings
        ##

        sendfile on;
        tcp_nopush on;
        tcp_nodelay on;
        keepalive_timeout 65;
        types_hash_max_size 2048;
        client_max_body_size 2g;
        # server_tokens off;
        server_names_hash_max_size 2048;
        server_names_hash_bucket_size 128;

        # server_names_hash_bucket_size 64;
        # server_name_in_redirect off;

        include /etc/nginx/mime.types;
        default_type application/octet-stream;

        ##
        # Logging Settings
        ##

        access_log /var/log/nginx/access.log;
        error_log /var/log/nginx/error.log;

        ##
        # Gzip Settings
        ##

        gzip on;
        gzip_disable "msie6";

        include /etc/nginx/conf.d/*.conf;
        include /etc/nginx/sites-enabled/*;
}

/etc/nginx/sites-enabled/srv.conf:

server {
    listen  80;
    server_name srv.project.loc;

    # Define root
    set $fs_webroot "/home/andser/public_html/project/srv";
    root $fs_webroot;
    index   index.php;

    # robots.txt
    location = /robots.txt {
        alias $fs_webroot/deny.robots.txt;
    }

    # Domain root
    location / {
        if ($request_method = OPTIONS ) {
            add_header Access-Control-Allow-Origin "http://project.loc";
            add_header Access-Control-Allow-Methods "GET, OPTIONS, POST";
            add_header Access-Control-Allow-Headers "Authorization,X-Requested-With,X-File-Name,Content-Type";
            #add_header Access-Control-Allow-Headers "*";
            add_header Access-Control-Allow-Credentials "true";
            add_header Access-Control-Max-Age "10000";
            add_header Content-Length 0;
            add_header Content-Type text/plain;
            return 200;
        }
        try_files $uri $uri/ /index.php?$query_string;
    }

    #error_page  404  /404.htm

    location ~ index.php {
        fastcgi_pass    127.0.0.1:9000;
        fastcgi_index   index.php;
        fastcgi_param   SCRIPT_FILENAME $fs_webroot/$fastcgi_script_name;
        include fastcgi_params;
        fastcgi_param   REQUEST_METHOD  $request_method;
        fastcgi_param   PATH_INFO   $fastcgi_script_name;

        add_header Pragma no-cache;
        add_header Cache-Control no-cache,must-revalidate;
        add_header Access-Control-Allow-Origin *;
        #add_header Access-Control-Allow-Headers "Content-Type, X-Requested-With, X-File-Name";
    }
}

有谁知道通过PHP减少内存消耗的方法？谢谢.

Answer 1

以前也遇到过同样的情况，这就是我在上传过程中将文件分成不同块的方法。

我的一个很好的例子是使用[1]：http://www.plupload.com/index.php “pulpload”或尝试使用java小程序http://jupload.sourceforge.net，它在出现网络问题时也具有恢复功能ETC。

最重要的是，您希望通过网络浏览器上传文件，但有注意事项阻止您分块上传