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Abstract classes and interface definitions in PHP

Here I will introduce the interface first, because abstract classes are not mentioned in several PHP reference books I have read recently.

Oct 09, 2016 am 11:35 AM

PHP中抽象类，接口定义

PHP uses the mysqli extension library to implement addition, deletion, modification and query (object-oriented version)

The mysqli extension library is an improved version of the mysql extension library. It improves stability and efficiency on the basis of the mysql extension library. The mysqli extension library has two sets of things, one is process-oriented mysqli and the other is object-oriented mysqli. The operation method is generally the same as that of the mysql extension library. This time, we first extract a tool class for operating mysql and the calling class.

Oct 09, 2016 am 11:32 AM

PHP使用mysqli扩展库实现增删改查（面向对象版）

PHP essence

Contents that need to be memorized and mastered regarding PHP organization

Oct 09, 2016 am 11:30 AM

PHP精粹

The difference between php using htmlspecialchars() and strip_tags functions to filter HTML tags

Oct 09, 2016 am 11:28 AM

php 使用htmlspecialchars() 和strip_tags函数过滤HTML标签的区别

Solving the problem of PHP move_uploaded_file function failing to move pictures

Oct 09, 2016 am 11:25 AM

解决PHP move_uploaded_file函数移动图片失败

Usage examples of opendir function in php

Oct 09, 2016 am 11:24 AM

php中opendir函数用法实例

PHP operators

PHP operators can be divided into unary operators, binary operators, and ternary operators according to the number of operands. Unary operators such as ! (negation operator) or ++ (plus one operator). Most of the operators supported by PHP are such binary operators, such as +, -, *, / and other arithmetic operators. There is only one ternary operator (?:). In addition, operators can be classified according to their functions: arithmetic operators, string operators, assignment operators, comparison operators, logical operators, bitwise operators and other operators.

Oct 09, 2016 am 11:21 AM

PHP运算符

First introduction to PHPunit stub simulation return data

PHP生成图片验证码demo

IDE is toxic

Oct 09, 2016 am 08:59 AM

IDE有毒

Verify that coordinates are within a certain coordinate area php code

A requirement I encountered before was to display the company's services on a map, and to count users' daily access coordinates to see how many users were within the reachable service radius.

Oct 08, 2016 pm 05:45 PM

验证坐标在某片坐标区域内 php 代码