关于木有biggerFly这是木木的第一个PHP系列biggerFly翻译过来就是逼格飞~起,因为是PHP,所以这里就是驼峰命名就像名字表达的含义一样,这个系列教你怎么把PHP用得逼格飞起当然有一些也是我曾经以为逼格飞起但是结果然并卵的木木的脑洞一直都……所以,最后我会对这些代码进行一些评价,不想看木木疯的,可以跳转别的系列,传送门在末尾那么进入第一期的正题
需求
接收表单数据,格式化处理它们,然后插入数据库
模拟
假设表单提交过来的数据为
$postData = [ ['name' => 'name1', 'createtime' => '2000-01-01', 'email' => 'email1@example.com' ], ['name' => 'name2', 'createtime' => '2000-02-01', 'email' => 'email2@example.com' ], ['name' => 'name3', 'createtime' => '2000-03-01', 'email' => 'email3@example.com' ], ['name' => 'name4', 'createtime' => '2000-04-01', 'email' => 'email4@example.com' ],];
正常做法
function format( $data ) { $format = $data; $format['createtime'] = strtotime( $data['createtime'] ); return $format;}
当然上面的也可以换成引用,引用可以减少内存的开销哦~
木有biggerFly
(剧本载入中……)木木:我不想写那么多format方法,这次提交表单要写一个format,下次另一个地方也要一个format,每次都定义一个,好麻烦啊,有没有。如果还有一个验证用的validate方法,或者别的abc方法……天啊,饶了我吧biggerFly:要不试一试匿名函数?木木:哈?匿名函数是什么鬼?biggerFly:匿名函数传送门在此,走你木木:好晕,你直接告诉我,要怎么做吧……biggerFly:
class A { public $data = NULL; public $format = NULL; /** * 执行 */ public function run() { foreach ( $this->data as $key => &$data ) { if ( is_callable( $this->format ) ) { $method = $this->format;//必须赋值给一个变量,不然会报错:format方法不存在 $method( $data ); } } } /** * 设置data数组 * @param array $data */ public function setData( $data ) { $this->data = $data; return $this; } /** * 获取data数组 * @return array */ public function getData() { return $this->data; }}
木木:所以呢?怎么用biggerFly:以模拟为例子
$a = new A();$a->setData( $postData );$a->format = function( &$data ) { $data['createtime'] = strtotime( $data['createtime'] );};$a->run();var_dump( $a->getData() );
运行结果略,这里会把二维数组$postData的createtime的日期格式转化为时间戳biggerFly:通过这样的方式,只要在A类里定义一些常用的方法,就可以写不需要重复定义函数,比如一些常用的规则解释
- is_callable传送门。如果严谨一点,可以加一个is_array的判断,确保是函数
- 这样可以省去很多额外的函数定义,一些常用的比如format、validate方法直接内嵌在A类里就好了
- 同时每一个需要格式化表单数据的脚本可能就少引用了很多类,比如,如果你要检测字符串格式是不是邮箱,你可能要在每个表单处理的地方调用一个String类,有了A类,你就可以只需要一个A,把所有这种引用的写在A里就好了
- 这些处理表单数据的函数本来就是一次性的(这些format方法难道还适用别的表单数据处理咩?),所以,用匿名函数也比较符合它的含义
- 不觉得高大上咩?
其他
- 通过这样的处理,你可能还可以写出如下类似的代码,这里就不把实现写出来了,对着格式很容易就可以完成的
$a->validate = function( &$data ) {$data['email'] = array( 'email', 'unique' );$data['name'] = array( 'required', 'unique' );$data['createtime'] = array( 'datetime', function($time) { if ( strtotime( $time ) >= time() ) { return false; } else { return true; } } );};
- 匿名函数在php原生函数里经常出现,它们也被叫做回调函数,想要了解更多匿名函数,建议参考手册以及相关评论匿名函数```
传送门
往期PHP-数组我的小说灵音万年

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.

In PHP, use the clone keyword to create a copy of the object and customize the cloning behavior through the \_\_clone magic method. 1. Use the clone keyword to make a shallow copy, cloning the object's properties but not the object's properties. 2. The \_\_clone method can deeply copy nested objects to avoid shallow copying problems. 3. Pay attention to avoid circular references and performance problems in cloning, and optimize cloning operations to improve efficiency.

PHP is suitable for web development and content management systems, and Python is suitable for data science, machine learning and automation scripts. 1.PHP performs well in building fast and scalable websites and applications and is commonly used in CMS such as WordPress. 2. Python has performed outstandingly in the fields of data science and machine learning, with rich libraries such as NumPy and TensorFlow.

Key players in HTTP cache headers include Cache-Control, ETag, and Last-Modified. 1.Cache-Control is used to control caching policies. Example: Cache-Control:max-age=3600,public. 2. ETag verifies resource changes through unique identifiers, example: ETag: "686897696a7c876b7e". 3.Last-Modified indicates the resource's last modification time, example: Last-Modified:Wed,21Oct201507:28:00GMT.

In PHP, password_hash and password_verify functions should be used to implement secure password hashing, and MD5 or SHA1 should not be used. 1) password_hash generates a hash containing salt values to enhance security. 2) Password_verify verify password and ensure security by comparing hash values. 3) MD5 and SHA1 are vulnerable and lack salt values, and are not suitable for modern password security.

PHP is a server-side scripting language used for dynamic web development and server-side applications. 1.PHP is an interpreted language that does not require compilation and is suitable for rapid development. 2. PHP code is embedded in HTML, making it easy to develop web pages. 3. PHP processes server-side logic, generates HTML output, and supports user interaction and data processing. 4. PHP can interact with the database, process form submission, and execute server-side tasks.

PHP has shaped the network over the past few decades and will continue to play an important role in web development. 1) PHP originated in 1994 and has become the first choice for developers due to its ease of use and seamless integration with MySQL. 2) Its core functions include generating dynamic content and integrating with the database, allowing the website to be updated in real time and displayed in personalized manner. 3) The wide application and ecosystem of PHP have driven its long-term impact, but it also faces version updates and security challenges. 4) Performance improvements in recent years, such as the release of PHP7, enable it to compete with modern languages. 5) In the future, PHP needs to deal with new challenges such as containerization and microservices, but its flexibility and active community make it adaptable.

The core benefits of PHP include ease of learning, strong web development support, rich libraries and frameworks, high performance and scalability, cross-platform compatibility, and cost-effectiveness. 1) Easy to learn and use, suitable for beginners; 2) Good integration with web servers and supports multiple databases; 3) Have powerful frameworks such as Laravel; 4) High performance can be achieved through optimization; 5) Support multiple operating systems; 6) Open source to reduce development costs.


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

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.

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

DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

Dreamweaver Mac version
Visual web development tools

Dreamweaver CS6
Visual web development tools