This article mainly introduced the PHP implementation statistics online number function, combined with the example form analysis PHP based on the session object calculation and statistics online number of related operations skills, the need for
Often when the PHP page in the use of include, require, require_once contains some other locations of the page, there will be errors, such as no time to find the page, or permissions are not allowed, can be excluded according to the following
The inheritance of PHP classes is an important point of knowledge in the learning of PHP language. So how do we properly learn the inheritance of PHP classes? In PHP object-oriented programming, class inheritance is always the most critical.
This
The performance of the Require () statement is similar to include (), which includes and runs the specified file. The difference is that, for the include () statement, it is read and evaluated every time the file is executed, whereas for require (),
This article mainly introduces PHP substr () and explode () function usage analysis, in the form of an instance of the substr () and explode () function to deal with the string of skills, is the use of high frequency function in string operation,
This article mainly introduces the PHP socket client and server-side application example, the need for friends can refer to the following
Often friends will be full of doubts about the application of the PHP socket, this article is an example of
This article mainly introduces the in-depth PHP socket programming, this article explains the socket of the relevant knowledge, PHP socket Programming example of the contents of the pack, the need for friends can refer to the next
You're not a
PHP comes with quite a bit of encryption, so let's take a look at how the mcrypt extension works. is also in the work need to use this thing encrypted access to the user's cookie value, seriously learn the content of this aspect.
1.
Copy CodeThe code is as follows:
Class HTML{var $dir; Dir for the htmls (without/)var $rootdir; Root of HTML files (without/): HTMLvar $name; HTML file storage Pathvar $dirname; The specified folder namevar $url; Gets the source page address of the
In PHP, the interface abstract class, final, static a few of the fairly simple we used, especially the large Web site architecture will be useful, today we look at an abstract class in PHP, final, static example.
1. Interface(1) The use of the
PHP supports namespaces at the beginning of the 5.3.0 version. What is a namespace? In a broad sense, namespaces are a way of encapsulating things. This abstract concept can be seen in many places.
Namespaces Overview
In PHP, namespaces are used to
Weakly typed languages are also known as weak type definition languages. Contrary to strongly typed definitions. Like vb,php and so on is a weak type of language, this article to you in detail about the weak type of PHP security issues, there is a
The static keyword is used to modify properties, methods, which are called properties, methods as static properties, and static methods.
The static keyword declares that a property or method is related to a class and not to a particular instance
One of the most powerful functions of a computer program is to repeat certain operations in accordance with the prescribed conditions. The cyclic structure can reduce the amount of repetitive writing of the source program, that is, when a given
In "Go" straight out of ASM or any other assembly language. Here's a link: I want to know: what can do this and make my code more how I can do it in this larger project without cheering up. Since the goto statement allows you to jump back and forth,
1. Loop control Break statement:
Break ends the execution of the current for,while,do-while or switch structure.
Break can accept an optional numeric parameter to decide to jump out of a few loops.
'; break;case 10:echo ' quit at 10 '; Break 2 ;
The unset function is a function of PHP's own destruction variables, we introduced the use of unset to destroy the static variables and global variables, and can destroy the array variable Oh, let's look at the example below.
Example 1. Unset ()
The following small series for everyone to bring a PHP download remote large files (get remote file size) instances. Small series feel very good, now share to everyone, also for everyone to make a reference. Let's take a look at it with a little
In PHP URL jump regardless of that approach can not be separated from the header function, below I will give you some commonly used URL jump implementation procedures and methods, there is a need for friends to refer to.
1.header () function
The
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