实现爬虫记录本文从创建crawler 数据库,robot.php记录来访的爬虫从而将信息插入数据库crawler,然后从数据库中就可以获得所有的爬虫信息。实现代码具体如下:
数据库设计
create table crawler ( crawler_ID bigint() unsigned not null auto_increment primary key, crawler_category varchar() not null, crawler_date datetime not null default '-- ::', crawler_url varchar() not null, crawler_IP varchar() not null )default charset=utf;
以下文件 robot.php 记录来访的爬虫,并将信息写入数据库:
<?php $ServerName = $_SERVER["SERVER_NAME"] ; $ServerPort = $_SERVER["SERVER_PORT"] ; $ScriptName = $_SERVER["SCRIPT_NAME"] ; $QueryString = $_SERVER["QUERY_STRING"]; $serverip = $_SERVER["REMOTE_ADDR"] ; $Url="http://".$ServerName; if ($ServerPort != "") { $Url = $Url.":".$ServerPort ; } $Url=$Url.$ScriptName; if ($QueryString !="") { $Url=$Url."?".$QueryString; } $GetLocationURL=$Url ; $agent = $_SERVER["HTTP_USER_AGENT"]; $agent=strtolower($agent); $Bot =""; if (strpos($agent,"bot")>-) { $Bot = "Other Crawler"; } if (strpos($agent,"googlebot")>-) { $Bot = "Google"; } if (strpos($agent,"mediapartners-google")>-) { $Bot = "Google Adsense"; } if (strpos($agent,"baiduspider")>-) { $Bot = "Baidu"; } if (strpos($agent,"sogou spider")>-) { $Bot = "Sogou"; } if (strpos($agent,"yahoo")>-) { $Bot = "Yahoo!"; } if (strpos($agent,"msn")>-) { $Bot = "MSN"; } if (strpos($agent,"ia_archiver")>-) { $Bot = "Alexa"; } if (strpos($agent,"iaarchiver")>-) { $Bot = "Alexa"; } if (strpos($agent,"sohu")>-) { $Bot = "Sohu"; } if (strpos($agent,"sqworm")>-) { $Bot = "AOL"; } if (strpos($agent,"yodaoBot")>-) { $Bot = "Yodao"; } if (strpos($agent,"iaskspider")>-) { $Bot = "Iask"; } require("./dbinfo.php"); date_default_timezone_set('PRC'); $shijian=date("Y-m-d h:i:s", time()); // 连接到 MySQL 服务器 $connection = mysql_connect ($host, $username, $password); if (!$connection) { die('Not connected : ' . mysql_error()); } // 设置活动的 MySQL 数据库 $db_selected = mysql_select_db($database, $connection); if (!$db_selected) { die ('Can\'t use db : ' . mysql_error()); } // 向数据库插入数据 $query = "insert into crawler (crawler_category, crawler_date, crawler_url, crawler_IP) values ('$Bot','$shijian','$GetLocationURL','$serverip')"; $result = mysql_query($query); if (!$result) { die('Invalid query: ' . mysql_error()); } ?>
成功了,现在访问数据库即可得知什么时候哪里的蜘蛛爬过你的什么页面。
view sourceprint? <?php include './robot.php'; include '../library/page.Class.php'; $page = $_GET['page']; include '../library/conn_new.php'; $count = $mysql -> num_rows($mysql -> query("select * from crawler")); $pages = new PageClass($count,,$_GET['page'],$_SERVER['PHP_SELF'].'?page={page}'); $sql = "select * from crawler order by "; $sql .= "crawler_date desc limit ".$pages -> page_limit.",".$pages -> myde_size; $result = $mysql -> query($sql); ?> <table width=""> <thead> <tr> <td bgcolor="#CCFFFF"></td> <td bgcolor="#CCFFFF" align="center" style="color:#">爬虫访问时间</td> <td bgcolor="#CCFFFF" align="center" style="color:#">爬虫分类</td> <td bgcolor="#CCFFFF" align="center" style="color:#">爬虫IP</td> <td bgcolor="#CCFFFF" align="center" style="color:#">爬虫访问的URL</td> </tr> </thead> <?php while($myrow = $mysql -> fetch_array($result)){ ?> <tr> <td width=""><img src="/static/imghwm/default1.png" data-src="../images/topicnew.gif" class="lazy" / alt="PHP代码实现爬虫记录超管用_PHP" ></td> <td width="" style="font-family:Georgia"><? echo $myrow["crawler_date"] ?></td> <td width="" style="color:#FA"><? echo $myrow["crawler_category"] ?></td> <td width=""><? echo $myrow["crawler_IP"] ?></td> <td width=""><? echo $myrow["crawler_url"] ?></td> </tr> <?php } ?> </table> <?php echo $pages -> myde_write(); ?>
以上代码就是PHP代码实现爬虫记录——超管用的全部内容,希望对大家有所帮助。

PHP is used to build dynamic websites, and its core functions include: 1. Generate dynamic content and generate web pages in real time by connecting with the database; 2. Process user interaction and form submissions, verify inputs and respond to operations; 3. Manage sessions and user authentication to provide a personalized experience; 4. Optimize performance and follow best practices to improve website efficiency and security.

PHP uses MySQLi and PDO extensions to interact in database operations and server-side logic processing, and processes server-side logic through functions such as session management. 1) Use MySQLi or PDO to connect to the database and execute SQL queries. 2) Handle HTTP requests and user status through session management and other functions. 3) Use transactions to ensure the atomicity of database operations. 4) Prevent SQL injection, use exception handling and closing connections for debugging. 5) Optimize performance through indexing and cache, write highly readable code and perform error handling.

Using preprocessing statements and PDO in PHP can effectively prevent SQL injection attacks. 1) Use PDO to connect to the database and set the error mode. 2) Create preprocessing statements through the prepare method and pass data using placeholders and execute methods. 3) Process query results and ensure the security and performance of the code.

PHP and Python have their own advantages and disadvantages, and the choice depends on project needs and personal preferences. 1.PHP is suitable for rapid development and maintenance of large-scale web applications. 2. Python dominates the field of data science and machine learning.

PHP is widely used in e-commerce, content management systems and API development. 1) E-commerce: used for shopping cart function and payment processing. 2) Content management system: used for dynamic content generation and user management. 3) API development: used for RESTful API development and API security. Through performance optimization and best practices, the efficiency and maintainability of PHP applications are improved.

PHP makes it easy to create interactive web content. 1) Dynamically generate content by embedding HTML and display it in real time based on user input or database data. 2) Process form submission and generate dynamic output to ensure that htmlspecialchars is used to prevent XSS. 3) Use MySQL to create a user registration system, and use password_hash and preprocessing statements to enhance security. Mastering these techniques will improve the efficiency of web development.

PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

PHP is still dynamic and still occupies an important position in the field of modern programming. 1) PHP's simplicity and powerful community support make it widely used in web development; 2) Its flexibility and stability make it outstanding in handling web forms, database operations and file processing; 3) PHP is constantly evolving and optimizing, suitable for beginners and experienced developers.


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

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

SublimeText3 Chinese version
Chinese version, very easy to use

SublimeText3 Mac version
God-level code editing software (SublimeText3)

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.

Dreamweaver Mac version
Visual web development tools

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool