php教程
php手册
It's the end of the year. Let's create a php program that simulates IP to brush votes.
It's the end of the year. Let's create a php program that simulates IP to brush votes.
<span style="color: #008080;"> 1</span> <span style="color: #000000;">php
</span><span style="color: #008080;"> 2</span> <span style="color: #800080;">$ip</span> = <span style="color: #800080;">$_GET</span>['ip'] ? <span style="color: #800080;">$_GET</span>['ip'] : '1.1.1.1'<span style="color: #000000;">;
</span><span style="color: #008080;"> 3</span> <span style="color: #800080;">$ipArr</span> = <span style="color: #008080;">explode</span>(".", <span style="color: #800080;">$ip</span><span style="color: #000000;">);
</span><span style="color: #008080;"> 4</span> <span style="color: #800080;">$ipArr</span>[3] = <span style="color: #800080;">$ipArr</span>[3] + 1<span style="color: #000000;">;
</span><span style="color: #008080;"> 5</span> <span style="color: #0000ff;">if</span> ( <span style="color: #800080;">$ipArr</span>[3] > 254<span style="color: #000000;"> )
</span><span style="color: #008080;"> 6</span> <span style="color: #000000;">{
</span><span style="color: #008080;"> 7</span> <span style="color: #800080;">$ipArr</span>[3] = 1<span style="color: #000000;">;
</span><span style="color: #008080;"> 8</span> <span style="color: #800080;">$ipArr</span>[2] = <span style="color: #800080;">$ipArr</span>[2] + 1<span style="color: #000000;">;
</span><span style="color: #008080;"> 9</span> <span style="color: #000000;">}
</span><span style="color: #008080;">10</span> <span style="color: #0000ff;">if</span> ( <span style="color: #800080;">$ipArr</span>[2] > 254<span style="color: #000000;"> )
</span><span style="color: #008080;">11</span> <span style="color: #000000;">{
</span><span style="color: #008080;">12</span> <span style="color: #800080;">$ipArr</span>[2] = 1<span style="color: #000000;">;
</span><span style="color: #008080;">13</span> <span style="color: #800080;">$ipArr</span>[1] = <span style="color: #800080;">$ipArr</span>[1] + 1<span style="color: #000000;">;
</span><span style="color: #008080;">14</span> <span style="color: #000000;">}
</span><span style="color: #008080;">15</span> <span style="color: #0000ff;">if</span> ( <span style="color: #800080;">$ipArr</span>[1] > 254<span style="color: #000000;"> )
</span><span style="color: #008080;">16</span> <span style="color: #000000;">{
</span><span style="color: #008080;">17</span> <span style="color: #800080;">$ipArr</span>[1] = 1<span style="color: #000000;">;
</span><span style="color: #008080;">18</span> <span style="color: #800080;">$ipArr</span>[0] = <span style="color: #800080;">$ipArr</span>[0] + 1<span style="color: #000000;">;
</span><span style="color: #008080;">19</span> <span style="color: #000000;">}
</span><span style="color: #008080;">20</span> <span style="color: #0000ff;">if</span> ( <span style="color: #800080;">$ipArr</span>[0] > 254<span style="color: #000000;"> )
</span><span style="color: #008080;">21</span> <span style="color: #000000;">{
</span><span style="color: #008080;">22</span> <span style="color: #0000ff;">exit</span><span style="color: #000000;">();
</span><span style="color: #008080;">23</span> <span style="color: #000000;">}
</span><span style="color: #008080;">24</span> <span style="color: #800080;">$ip</span> = <span style="color: #008080;">implode</span>(".", <span style="color: #800080;">$ipArr</span><span style="color: #000000;">);
</span><span style="color: #008080;">25</span> <span style="color: #008000;">//</span><span style="color: #008000;"> 此处设置投票的id</span>
<span style="color: #008080;">26</span> <span style="color: #800080;">$post_data</span> = 'vid=8'<span style="color: #000000;">;
</span><span style="color: #008080;">27</span>
<span style="color: #008080;">28</span> <span style="color: #008000;">//</span><span style="color: #008000;"> 投票的地址</span>
<span style="color: #008080;">29</span> <span style="color: #800080;">$url</span> = 'http://www.xxx.com/api.php?m=vote&a=voteto'<span style="color: #000000;">;
</span><span style="color: #008080;">30</span> <span style="color: #800080;">$user_agent</span> = "Mozilla/4.0"<span style="color: #000000;">;
</span><span style="color: #008080;">31</span>
<span style="color: #008080;">32</span> <span style="color: #800080;">$headers</span>['CLIENT-IP'] = <span style="color: #800080;">$ip</span><span style="color: #000000;">;
</span><span style="color: #008080;">33</span> <span style="color: #800080;">$headers</span>['X-FORWARDED-FOR'] = <span style="color: #800080;">$ip</span><span style="color: #000000;">;
</span><span style="color: #008080;">34</span>
<span style="color: #008080;">35</span> <span style="color: #800080;">$headerArr</span> = <span style="color: #0000ff;">array</span><span style="color: #000000;">();
</span><span style="color: #008080;">36</span> <span style="color: #0000ff;">foreach</span> ( <span style="color: #800080;">$headers</span> <span style="color: #0000ff;">as</span> <span style="color: #800080;">$n</span> => <span style="color: #800080;">$v</span><span style="color: #000000;"> )
</span><span style="color: #008080;">37</span> <span style="color: #000000;">{
</span><span style="color: #008080;">38</span> <span style="color: #800080;">$headerArr</span>[] = <span style="color: #800080;">$n</span> . ':' . <span style="color: #800080;">$v</span><span style="color: #000000;">;
</span><span style="color: #008080;">39</span> <span style="color: #000000;">}
</span><span style="color: #008080;">40</span>
<span style="color: #008080;">41</span> <span style="color: #800080;">$ch</span> =<span style="color: #000000;"> curl_init();
</span><span style="color: #008080;">42</span> curl_setopt(<span style="color: #800080;">$ch</span>, CURLOPT_POST, 1<span style="color: #000000;">);
</span><span style="color: #008080;">43</span> curl_setopt(<span style="color: #800080;">$ch</span>, CURLOPT_URL, <span style="color: #800080;">$url</span><span style="color: #000000;">);
</span><span style="color: #008080;">44</span>
<span style="color: #008080;">45</span> curl_setopt(<span style="color: #800080;">$ch</span>, CURLOPT_HTTPHEADER, <span style="color: #800080;">$headerArr</span>); <span style="color: #008000;">//</span><span style="color: #008000;"> 构造IP</span>
<span style="color: #008080;">46</span> curl_setopt(<span style="color: #800080;">$ch</span>, CURLOPT_REFERER, "http://www.baidu.com/ "); <span style="color: #008000;">//</span><span style="color: #008000;"> 构造来路</span>
<span style="color: #008080;">47</span> curl_setopt(<span style="color: #800080;">$ch</span>, CURLOPT_HEADER, 1<span style="color: #000000;">);
</span><span style="color: #008080;">48</span>
<span style="color: #008080;">49</span> curl_setopt(<span style="color: #800080;">$ch</span>, CURLOPT_USERAGENT, <span style="color: #800080;">$user_agent</span><span style="color: #000000;">);
</span><span style="color: #008080;">50</span> curl_setopt(<span style="color: #800080;">$ch</span>, CURLOPT_POSTFIELDS, <span style="color: #800080;">$post_data</span><span style="color: #000000;">);
</span><span style="color: #008080;">51</span>
<span style="color: #008080;">52</span> <span style="color: #008080;">ob_start</span><span style="color: #000000;">();
</span><span style="color: #008080;">53</span> curl_exec(<span style="color: #800080;">$ch</span><span style="color: #000000;">);
</span><span style="color: #008080;">54</span> <span style="color: #800080;">$result</span> = <span style="color: #008080;">ob_get_contents</span><span style="color: #000000;">();
</span><span style="color: #008080;">55</span> <span style="color: #008080;">ob_end_clean</span><span style="color: #000000;">();
</span><span style="color: #008080;">56</span>
<span style="color: #008080;">57</span> <span style="color: #0000ff;">echo</span> <span style="color: #800080;">$result</span><span style="color: #000000;">;
</span><span style="color: #008080;">58</span> <span style="color: #0000ff;">echo</span> '<meta http-equiv="refresh" content="1;url=http://localhost/phpk/post.php?ip=' . <span style=" color:>$ip . '"> '<span style="color: #000000;">;
</span><span style="color: #008080;">59</span> ?>
Scope of use: All voting websites that restrict IP addresses. The number of votes can reach 254*254*254*254.
How to prevent this type of ticket fraud:
Use first when obtaining the client IP:
<span style="color: #800080;">$ip</span> = <span style="color: #008080;">getenv</span>('REMOTE_ADDR');Using remote_addr can effectively control simulated IP voting. It can be bypassed unless a proxy is used. However, using the web to implement a proxy is very slow.
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
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
Explain JSON Web Tokens (JWT) and their use case in PHP APIs.
Apr 05, 2025 am 12:04 AM
JWT is an open standard based on JSON, used to securely transmit information between parties, mainly for identity authentication and information exchange. 1. JWT consists of three parts: Header, Payload and Signature. 2. The working principle of JWT includes three steps: generating JWT, verifying JWT and parsing Payload. 3. When using JWT for authentication in PHP, JWT can be generated and verified, and user role and permission information can be included in advanced usage. 4. Common errors include signature verification failure, token expiration, and payload oversized. Debugging skills include using debugging tools and logging. 5. Performance optimization and best practices include using appropriate signature algorithms, setting validity periods reasonably,
PHP Program to Count Vowels in a String
Feb 07, 2025 pm 12:12 PM
A string is a sequence of characters, including letters, numbers, and symbols. This tutorial will learn how to calculate the number of vowels in a given string in PHP using different methods. The vowels in English are a, e, i, o, u, and they can be uppercase or lowercase. What is a vowel? Vowels are alphabetic characters that represent a specific pronunciation. There are five vowels in English, including uppercase and lowercase: a, e, i, o, u Example 1 Input: String = "Tutorialspoint" Output: 6 explain The vowels in the string "Tutorialspoint" are u, o, i, a, o, i. There are 6 yuan in total
Explain late static binding in PHP (static::).
Apr 03, 2025 am 12:04 AM
Static binding (static::) implements late static binding (LSB) in PHP, allowing calling classes to be referenced in static contexts rather than defining classes. 1) The parsing process is performed at runtime, 2) Look up the call class in the inheritance relationship, 3) It may bring performance overhead.
How do you parse and process HTML/XML in PHP?
Feb 07, 2025 am 11:57 AM
This tutorial demonstrates how to efficiently process XML documents using PHP. XML (eXtensible Markup Language) is a versatile text-based markup language designed for both human readability and machine parsing. It's commonly used for data storage an
What are PHP magic methods (__construct, __destruct, __call, __get, __set, etc.) and provide use cases?
Apr 03, 2025 am 12:03 AM
What are the magic methods of PHP? PHP's magic methods include: 1.\_\_construct, used to initialize objects; 2.\_\_destruct, used to clean up resources; 3.\_\_call, handle non-existent method calls; 4.\_\_get, implement dynamic attribute access; 5.\_\_set, implement dynamic attribute settings. These methods are automatically called in certain situations, improving code flexibility and efficiency.
PHP and Python: Comparing Two Popular Programming Languages
Apr 14, 2025 am 12:13 AM
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.
Demystifying JavaScript: What It Does and Why It Matters
Apr 09, 2025 am 12:07 AM
JavaScript is the cornerstone of modern web development, and its main functions include event-driven programming, dynamic content generation and asynchronous programming. 1) Event-driven programming allows web pages to change dynamically according to user operations. 2) Dynamic content generation allows page content to be adjusted according to conditions. 3) Asynchronous programming ensures that the user interface is not blocked. JavaScript is widely used in web interaction, single-page application and server-side development, greatly improving the flexibility of user experience and cross-platform development.
PHP: A Key Language for Web Development
Apr 13, 2025 am 12:08 AM
PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7
