Detailed explanation of PHP variables 1

Detailed explanation of PHP variables 2

Detailed explanation of PHP variables 3

Detailed explanation of PHP variables 4

variable scope

Variable scope 1

Elaborate on constants

A closer look at variable filters

Operators and Applications

Branch control and template syntax

Loop control and template syntax 1

Loop control and template syntax 2

Function declaration and calling

Function types and application scenarios

function return value

function parameters

Callback

Functions with namespaces

String definition method

Common string functions

Common string functions 1

Common string functions 2

Common string functions

Array definition and traversal method 1

Array definition and traversal method 2

Common array functions 1

Common array functions 2

Common array functions 3

Common array functions 4

Session principle and cookie application 1

Session principle and cookie application 2

session and user login tracking 1

session and user login tracking 2

mysqli extension library operation database 1

mysqli extension library operation database 2

mysqli_stmt object preprocessing mechanism (anti-sql injection) 1

mysqli_stmt object preprocessing mechanism (anti-sql injection) 2

PDO database operations

PDO database operation 1

PDOStatement preprocessing to prevent sql injection 1

PDOStatement preprocessing to prevent sql injection 2

Session control to prevent cookie spoofing 1

Session control to prevent cookie spoofing 2

Session control automatic login 1

Session control automatic login 2

mysqli operation database 1

mysqli operation database 2

PDO operation database 1

PDO operation database 2

Classes and instances

Class attributes and class methods

Class access control and extension

Abstract class and interface practice 1

Abstract class and interface practice 2

Abstract class and interface practice 3

Trait principle and implementation 1

Five common scenarios for traits 1

Five common scenarios for traits 2

Abstract classes, interfaces, trait practice: Shuangseqiu Lottery 1

Abstract classes, interfaces, trait practice: Shuangseqiu Lottery 2

Summary of session control with examples 1

Summary of session control with examples 2

The principle and implementation of late static binding

Later static binding application scenarios

Use of constructor methods

Principle and practice of attribute access interceptor

The principle and implementation of method interceptor

The principle and implementation of method delegation

Method delegation in action: database query constructor

__sleep() and __wakeup() practice 1

__sleep() and __wakeup() practice 2

__toString() application scenario analysis

Anonymous class principles and practice

Namespace Basics 1

Namespace Basics 2

Class alias access and autoloader 1

Class alias access and autoloader 2

Upload form with $_FILES variable 1

Upload form with $_FILES variable 2

Error handling in file upload

Custom upload exception class

Move the uploaded file to the target directory

Principle and implementation of batch upload of files

Paging principle and implementation

Paging data display principle and implementation

Saturday Q&A class

Improve paging function 1

Improve paging function 2

Implementation of editing function

mvc principle in principle

Dependency injection principle and implementation

Service container in Facade facade technology 1

Service container in Facade facade technology 2

Routing principle

10 lines of code to implement a simple routing

Introduction to composer

Composer common commands 1

Composer common commands 2

Common composer commands 3

Composer common commands 4

Principle and implementation of composer autoloader 1,

Principle and implementation of composer autoloader 2,

Use composer to quickly build a PHP development framework 1

Use composer to quickly create a PHP development framework 2