<?php/×只为了证明PHP是最好的语言。目前设计的该程序是顺序执行,生产和消费者没有分开,使用来一个死循环,不断从redis的list里取出最新的QQ号码,然后用该QQ号码拼接出需要网站的地址,一次访问并存入mongodb,这里只是整个实现的流程代码,没有写QQ空间API接口。由于我分析的接口返回的是json,所以我直接存入mongodb。回来分析也非常方便。为了加大速度,我目前开了10进程,虽然没有到腾讯封IP的极限,但是以及到来我的笔记本的极限了。10个进程24小时可以采集180W,如果电脑配置高点,一天200多万不是问题。其中,懒得自己写curl类,用之前大神爬取知乎的时候写的类https://github.com/hhqcontinue/zhihuSpider××/include "phpspider/config.php";include "phpspider/cache.php";include "phpspider/rolling_curl.php";$cookie = trim(file_get_contents("cookie.txt"));$curl = new rolling_curl();$curl->set_cookie($cookie);$curl->set_gzip(true);$curl->callback = function($response, $info, $request, $error) { preg_match("#xxxxx#", $request['url'], $out); $qq = $out[1]; if (empty($response)) { file_put_contents("./data/error_timeout.log", date("Y-m-d H:i:s") . ' ' . $username.' --- '.json_encode($error)."\n", FILE_APPEND); // 注意这里不要用 exit,否则整个程序就断开了 return; } // 如果是个人信息 if (strpos($request['url'], 'a') ==true ) { //将信息添加至mongodb,先判断是否是错误信息 } //如果是来访QQ if (strpos($request['url'], 'b') == true) { //将信息添加至mongodb,先判断是否是错误信息 //从中取出QQ号码存入redis cache->get_instance()->lpush("qq");//一定要从左端插入,否则是出现死循环,例如A访问来B空间,B同样也访问来A空间,如果在设置网址的时候取先存入的QQ,程序就会不断在A和B之间访问,如果设置网址的时候取最新的则会将他们存入栈底部 } //如果是说说 if (strpos($request['url'], 'c') == true) { ///将信息添加至mongodb,先判断是否是错误信息 } };while(true){ $qq=cache->get_instance()->lpop("qq");//用从左端删除 if ($qq=="")$qq="12345678";//这里是登录的QQ号码 $url = "http://a".$qq;//个人信息 $curl->get($url); $url = "http://b".$qq;//来访QQ $curl->get($url); $url = "http://c".$qq;//最近说说 $curl->get($url); $data = $curl->execute(); // 睡眠100毫秒,太快了会被认为是ddos usleep(100000);}
因为,生产者和消费者没有分开,所以其中有一个问题,就是生产者产生的QQ号码多,消费者使用速度低,所以建议将采集QQ来访者和采集数据分开,采集数据可以多开写进程
用到的类库地址https://github.com/hhqcontinue/zhihuSpider

In PHP, you can use session_status() or session_id() to check whether the session has started. 1) Use the session_status() function. If PHP_SESSION_ACTIVE is returned, the session has been started. 2) Use the session_id() function, if a non-empty string is returned, the session has been started. Both methods can effectively check the session state, and choosing which method to use depends on the PHP version and personal preferences.

Sessionsarevitalinwebapplications,especiallyfore-commerceplatforms.Theymaintainuserdataacrossrequests,crucialforshoppingcarts,authentication,andpersonalization.InFlask,sessionscanbeimplementedusingsimplecodetomanageuserloginsanddatapersistence.

Managing concurrent session access in PHP can be done by the following methods: 1. Use the database to store session data, 2. Use Redis or Memcached, 3. Implement a session locking strategy. These methods help ensure data consistency and improve concurrency performance.

PHPsessionshaveseverallimitations:1)Storageconstraintscanleadtoperformanceissues;2)Securityvulnerabilitieslikesessionfixationattacksexist;3)Scalabilityischallengingduetoserver-specificstorage;4)Sessionexpirationmanagementcanbeproblematic;5)Datapersis

Load balancing affects session management, but can be resolved with session replication, session stickiness, and centralized session storage. 1. Session Replication Copy session data between servers. 2. Session stickiness directs user requests to the same server. 3. Centralized session storage uses independent servers such as Redis to store session data to ensure data sharing.

Sessionlockingisatechniqueusedtoensureauser'ssessionremainsexclusivetooneuseratatime.Itiscrucialforpreventingdatacorruptionandsecuritybreachesinmulti-userapplications.Sessionlockingisimplementedusingserver-sidelockingmechanisms,suchasReentrantLockinJ

Alternatives to PHP sessions include Cookies, Token-based Authentication, Database-based Sessions, and Redis/Memcached. 1.Cookies manage sessions by storing data on the client, which is simple but low in security. 2.Token-based Authentication uses tokens to verify users, which is highly secure but requires additional logic. 3.Database-basedSessions stores data in the database, which has good scalability but may affect performance. 4. Redis/Memcached uses distributed cache to improve performance and scalability, but requires additional matching

Sessionhijacking refers to an attacker impersonating a user by obtaining the user's sessionID. Prevention methods include: 1) encrypting communication using HTTPS; 2) verifying the source of the sessionID; 3) using a secure sessionID generation algorithm; 4) regularly updating the sessionID.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.

Atom editor mac version download
The most popular open source editor

SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

Zend Studio 13.0.1
Powerful PHP integrated development environment

EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function
