what is in php

Differences between strlen and mb_strlen in PHP: strlenmb_strlen. Differences between strlen and mb_strlen in PHP: in strlenmb_strlen in PHP, strlen and mb_strlen are functions used to evaluate the string length. However, if you do not read the

The difference between global variables $ GLOBALS and global in PHP. This article shares the differences between Super global variables $ GLOBALS and global in PHP. 1. there are many Super global variables $ GLOBALSPHP, and the following are all

Explore the session mechanism in php. 1. let's first analyze how php generates a session. The purpose of session design is to maintain various statuses of each user to make up for the session generation mechanism in HTTP protocol 1 and php. Let's

Implement inter-process communication in PHP. Implement Inter-Process Communication in PHP Qiu Wenyu this article will discuss how to use the Inter-Process Communication mechanism-IPC (Inter-Process-Communication) in the PHP4 environment ). The

Analysis of stdClass usage in php and phpstdclass usage. Analysis of stdClass usage in php, phpstdclass usage in this article examples analysis of stdClass usage in php. Share it with you for your reference. The specific analysis is as follows:

The difference between a comma and a dot in PHP programming, echo comma It mentions the Echo string, which is better than the connection. The reason is not to say, first look at the following two sentences What was the result? 1+5=6? 1+5=6? ——————

is the session in PHP safe? , phpsession Security PHP development So long, and really did not really pay attention to the issue of security, each time is to complete the project-based, recently saw an article on the Internet on security, after

Almost all programming languages involve the concepts of variables and constants, and PHP is no exception. This section describes how variables and constants in the PHP language are applied.First, what are variables and constantsDuring program

Output_buffering in PHP I personally think that Output buffering is a pure 4.0 feature. Although the concept is quite simple, the output buffering function is very powerful, making it easier for developers to develop advanced and effective programs.

This article adds to my favorites some of the questions or small issues that php developers often encounter. For more information, see. The differences between the above functions, 1. Differences between isset () and empty ()Both are used to test

Summary of problems encountered in file_exists usage in PHP, Summary of file_exists Introduction I found a problem and I will share it with you today. I will describe the entire process. Problem: The company has a framework written based on smarty.

Tutorials | Quick PHP is a server-side scripting language for creating dynamic Web pages. Like ASP and ColdFusion, users can mix PHP and HTML to write Web pages, and when a visitor browses to the page, the server first processes the PHP commands in

Many PHP enthusiasts in the learning process to feel the concept of the class in PHP is more difficult to understand and grasp, although know that the class since the existence of the truth, but because the usual contact and use of less

This article introduces Object-Oriented Programming (OOP) in PHP ). I will demonstrate how to use object-oriented concepts to compile less code but better programs. Good luck.The concept of object-oriented programming has different views for each

This article describes how to use the GD Library in php to draw a line chart, which involves some simple usage of the GD Library in php. This article describes in detail, if you are interested in learning it together, some simple image functions can

This article describes how to use curl in PHP. This article describes curl overview, how to install curl, how to use curl in PHP, and a simple curl code instance, for more information, see Overview In my previous article "introduction to curl and

PHP encryption function-md5 () function encryption what is MD5 () function? MD5 () function is the MD5 hash value of the calculator string, using MD5 algorithm, the full name of MD5 is Message-DigestAlgorithm5, it is used to calculate data

Use the header in php to set the content-type and common file types. In php, you can use the header function to set content-type and common file types in content-typephp. in PHP, you can use the header function to set content-type and common file

In php, error_reporting sets the PHP error level and returns the current level. We can set it based on different levels so that we do not want to execute the program when an error occurs outside the domain, the following describes the usage and

Considerations for calling DLL (COM) in PHP: 1. In the function parameters, the last parameter function is the return value and must be of the retval type. 2. When passing a string type parameter to an interface, do not use BSTR * type, but use BSTR