Table of Contents
一、mysql学习:
 二、利用成语接龙api接口抓取对方数据库成语:
三、Javascript Regular Expression Visualizer:
四、基于jquery的webweb弹层组件??layer学习使用:
五、研读《阿里巴巴集团web安全标准》
六、测试一台计算机是否开机
七、雪花飘落插件
八、猜拳小游戏---传统的石头剪刀布的web版
九、幻灯片展示框架 Fathom.js
Home Backend Development PHP Tutorial PHP的一些案例研究(二)

PHP的一些案例研究(二)

Jun 23, 2016 pm 01:41 PM

一、mysql学习:

1、完成数据表导出为xml文件(命令行,mysql.exe)、csv文件(outfile);
2、命令行导出指定记录,生成sql文件(mysqldump);
3、sql语句查询记录,并插入到指定表(insert...select...where....);
4、myisam表的简单修复(myisamchk -r table);
5、CASE WHEN的使用,
SELECT CASE 
WHEN 10*2=30 THEN '30 correct'
   WHEN 10*2=40 THEN '40 correct'
   ELSE 'Should be 10*2=20'
END; 。

 二、利用成语接龙api接口抓取对方数据库成语:

1、手工测试成语的准确性;经测试输入不是成语或者没有解词时,返回成语失败;输入同一成语可能返回不同的解词;
2、构建数据表,书写程序;预先设定一个成语,然后把返回结果入库,之后就不停的请求库里的成语,将返回结果入库并以此进行下一步请求;
 
3、开始成语:一马当先
运行时间 成语数
1小时20分 4900左右
2小时 7100左右
1天(停止过2次,时间不知) 18178左右
2天(有停止过) 29,197
已不能采集,不知道是否被限制了
4、成语应该也就三万左右的样子。

三、Javascript Regular Expression Visualizer:

 
1、纯js代码,提供了正则可视化、图片输出、嵌入到网页的功能;
2、可视化就是把js正则以图形的形式表现出来;图片输出是把正则图形化后生成图片,应该是网页标签截图;嵌入到网页是使用iframe。
 

四、基于jquery的webweb弹层组件??layer学习使用:

基于juqery1.8以上版本,代码简单,提供体验友好的弹出层,共有信息框、页面层、iframe层、加载层、tips层。
 
 
 

五、研读《阿里巴巴集团web安全标准》

不要相信用户的任何输入;用户标识,保证不会被hacker伪装;代码规范。
StringUtil.htmlEscape() TOKEN
 

六、测试一台计算机是否开机

    $rs=`ping 10.10.10.123`;
     $status=preg_match('%TTL=\d+%',$rs)?'yes':'no';
    echo $status;
?>
前提:运行php的服务器有操作系统命令的权限
 

七、雪花飘落插件

雪花是一张图片,通过控制图片的尺寸可以控制雪花的大小,然后用js控制悬浮在不同的层,呈飘落状。
 

八、猜拳小游戏---传统的石头剪刀布的web版

使用一个随机数来确定电脑的值,然后把电脑的值和用户选择的值进行对比,确定胜负。
主要代码:
Guess.onclick =function(){
var num = Math.floor(Math.random()*3 +1 );
  if (num==1) {
    computer.value="石头";
} else if (num==2) {
computer.value="剪刀";
} else if(num==3) {
computer.value="布";
}
var mineValue = mine.value;
var computerValue = computer.value;
if (mineValue==computerValue) {
alert("平局")
} else if (mineValue=="剪刀") {
alert(computerValue=="石头"?"you win":"lost")
} else if (mineValue=="石头") {
alert(computerValue=="布"?"you win":"lost")
} else if (mineValue=="布") {
alert(computerValue=="剪刀"?"you win":"lost")
}
mine.value ="";
computer.value ="";
}
 

九、幻灯片展示框架 Fathom.js

 
使用 HTML 和 CSS 实现了在浏览器上的幻灯片展示效果,基于 jQuery 开发,横向滑动条显示幻灯片。

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

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

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Explain JSON Web Tokens (JWT) and their use case in PHP APIs. 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,

How does session hijacking work and how can you mitigate it in PHP? How does session hijacking work and how can you mitigate it in PHP? Apr 06, 2025 am 12:02 AM

Session hijacking can be achieved through the following steps: 1. Obtain the session ID, 2. Use the session ID, 3. Keep the session active. The methods to prevent session hijacking in PHP include: 1. Use the session_regenerate_id() function to regenerate the session ID, 2. Store session data through the database, 3. Ensure that all session data is transmitted through HTTPS.

Describe the SOLID principles and how they apply to PHP development. Describe the SOLID principles and how they apply to PHP development. Apr 03, 2025 am 12:04 AM

The application of SOLID principle in PHP development includes: 1. Single responsibility principle (SRP): Each class is responsible for only one function. 2. Open and close principle (OCP): Changes are achieved through extension rather than modification. 3. Lisch's Substitution Principle (LSP): Subclasses can replace base classes without affecting program accuracy. 4. Interface isolation principle (ISP): Use fine-grained interfaces to avoid dependencies and unused methods. 5. Dependency inversion principle (DIP): High and low-level modules rely on abstraction and are implemented through dependency injection.

What are Enumerations (Enums) in PHP 8.1? What are Enumerations (Enums) in PHP 8.1? Apr 03, 2025 am 12:05 AM

The enumeration function in PHP8.1 enhances the clarity and type safety of the code by defining named constants. 1) Enumerations can be integers, strings or objects, improving code readability and type safety. 2) Enumeration is based on class and supports object-oriented features such as traversal and reflection. 3) Enumeration can be used for comparison and assignment to ensure type safety. 4) Enumeration supports adding methods to implement complex logic. 5) Strict type checking and error handling can avoid common errors. 6) Enumeration reduces magic value and improves maintainability, but pay attention to performance optimization.

How to debug CLI mode in PHPStorm? How to debug CLI mode in PHPStorm? Apr 01, 2025 pm 02:57 PM

How to debug CLI mode in PHPStorm? When developing with PHPStorm, sometimes we need to debug PHP in command line interface (CLI) mode...

How to automatically set permissions of unixsocket after system restart? How to automatically set permissions of unixsocket after system restart? Mar 31, 2025 pm 11:54 PM

How to automatically set the permissions of unixsocket after the system restarts. Every time the system restarts, we need to execute the following command to modify the permissions of unixsocket: sudo...

How to send a POST request containing JSON data using PHP's cURL library? How to send a POST request containing JSON data using PHP's cURL library? Apr 01, 2025 pm 03:12 PM

Sending JSON data using PHP's cURL library In PHP development, it is often necessary to interact with external APIs. One of the common ways is to use cURL library to send POST�...

See all articles