what is in php

Many of our programmers may not quite understand the differences between 0, null, null, and false, especially when determining whether 0 or false is correct, let's take a look Many of our programmers may not quite understand the differences between 0

The Chinese encoding problem in PHP Development, reading the Chinese encoding problem in PHP development, the Chinese encoding problem in PHP programming has plagued many people, the cause of this problem is actually very simple, each country (or

How to attack common vulnerabilities in PHP programs (on) Translation: Analysist (analyst) Source: http://www.china4lert.org How to attack common vulnerabilities in PHP programs (on) Original: Shaun Clowes Translation: Analysist This

In php, "the real-time code is readable and cannot be modified. Close the real-time code to edit the source code. "" real-time code is readable and cannot be modified. Closing real-time code to edit the source code "cannot be edited at all. in a

Example analysis of return usage in PHP This article mainly introduces the use of return in PHP, example analysis of the function of return in PHP and the common use of skills, with a certain reference value, the need for friends can refer to the

This section describes some advanced usage of caching in PHP Yii Framework, namely phpyii framework caching. Introduction to some advanced usage of cache in PHP Yii Framework, phpyii framework cache page cache refers to cache the entire page content

The difference between single quotes and double quotes in PHP is described in detail. The article details the differences between single quotes and double quotes in PHP. For more information, see. 1. define a string in PHP. The definition of a

In php, double colons are often seen in php Code: operator. this is the scope limitation operator, which is represented by a double colon:. it is used to pin the levels of different scopes in the class. On the left is the access scope member on the

1, stitching strings The concatenation of strings is one of the most commonly used string operations, and in PHP there are three ways to stitch strings, namely dots. The delimiter {} operation, and the dot equals sign. = to operate, the dot equals

Switchifelse is used to analyze the efficiency difference and applicability of the switch and ifelse in php. The difference in efficiency and applicability of switch and ifelse in php. switchifelse This article analyzes the differences in efficiency

Simple example of using redis in PHP. Simple example of using redis in PHP this article mainly introduces the simple example of using redis in PHP. it mainly shows you how to use redis in php, for more information about using redis in PHP, see the

Analysis of the negative limit usage of explode in php. Analysis of the negative limit usage of explode in php this article mainly introduces the usage of the negative limit of explode in php, and the usage of the limit parameter in the example

Common magic Methods in PHP function and usage examples This article mainly introduces the function and usage examples of common magic methods in PHP, this article explains the constructors and destructors __construct () and __desctruct () and

Summary of header usage in PHP, summary of Phpheader usage This article summarizes the usage of headers in PHP. Share to everyone for your reference, as follows: The function of the header () function in PHP is to send header information to the

1. let's first analyze how php generates a session. The purpose of the session design is to maintain the various statuses of each user to make up for the shortcomings of the HTTP protocol (stateless ). Now we have a question. we all know that the

In php programming, the difference between using commas for echo and using dots is that using commas for echo The echo string is better than the. Connection. The reason is not mentioned. Let's take a look at the following two sentences: What is

The syntax of the exception itself is not worth discussing. The exception usage scenario is the main one. Here I will compare php and java to see what the exceptions in php are and how they should be used.I saw this discussion on the PPC Forum and

What is the difference between date and gmdate in PHP? What is the difference between date and gmdate in PHP? The time in PHP has 2 formatting functions: Date () and Gmdate (), which are described in the official documentation: date-formatting a

How to use the session in PHP Declaration and use of the session The session setting differs from the cookie, which must be started first and must be called session_start () in PHP. The syntax format for the session_start () function is as follows:

The difference between magic variable __method__ and __function__ in PHP, Functionmethod This article explains the difference between magic variable __method__ and __function__ in PHP, and shares it for everyone's reference. The specific analysis