PHP Tutorials

The member variables of PHP can be initialized at the same time as the declaration, but only with scalar initialization. For example: Class A {public $f 1 = ' xxxx ', static public $f 2 = 100;} If you want to assign a variable to an object, you can

It is not possible to define a function with the same name in PHP, and also to include a method that cannot be defined in the same class .Method overloading . A method that has the same name as the parent class can be defined in a subclass, because

How PHP reads and writes files file_get_contents--Reads the entire file into a string file--reads the entire file into an array In the development of PHP Web site, there are usually two ways to store data, a text file storage, such as TXT file,

The application of cookies in the Web page is very common, in this article for you to introduce how to add to the cookie, value, delete, interested friends do not miss The code is as follows: function Setcookie (name,value,time) {var odate = new

Use PHP's Curl function to implement the method of simulating login. To extract some of Google's data, found that Google for the software to crawl its data masking, before the forgery of User-agent can capture data, but now it is not. The use of

This article mainly introduces the PHP check date function checkdate Usage, example analysis of PHP checkdate function of the use of skills, very practical value, the need for friends can refer to the next This example describes the PHP check date

PHP own try{throw{}}catch{} exception/Error capture system, difficult to use in production environment; In a production environment, we generally require that, in the event of an exception/error, PHP immediately end the script, output an error

Today in PHP need to be the string to the end of the space to remove, Baidu find PHP comes with this function trim, really convenient, special share under The first method: a function that comes with PHP "; echo RTrim ("Space"). " "; Echo

This article mainly introduces the PHP replacement string intermediate character is the ellipsis method, can be implemented to replace the middle part of the string with the ellipsis function, applicable to the account, cell phone number and other

The following small series for everyone to bring a PHP detection data types of several methods (summary). 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 knitting. In

This article is mainly about the destruction of the session variables in PHP is introduced, the need for friends can come to the reference, I hope to be helpful to everyone 1. What is a session?The equivalent of a client (can be browser, app, FTP

Learn PHP session can be used in many places, such as a background login function, to let the program remember the user's session, in fact, is very simple, read the following article you will understand. PHP session usage is very simple it can save

There are some problems with split today. Or the function is not deeply understood, close-up to make a mark First look at the definition of two methods:Function prototype: Array split (String $pattern, string $string [, int $limit])Function

Level two cascading menu in my last year when I used Asp+js did, and now suddenly took out to do when I found that I forgot, and the original program to write with ASP can not find, really dizzy [emot]sweat[/emot], so to search on the Internet, find

This article mainly introduces the method of drawing a rectangle in PHP, mainly related to the use of the Imagerectangle method in the GD library, the need for friends can refer to the following The example in this article describes how PHP draws

This article mainly introduces PHP Bind_param () function usage, simple analysis of the function of the Bind_param () function, parameters, use methods and related considerations, the need for friends can refer to the following This example

Today debug program prompt, please open OpenSSL, originally in most cases, OpenSSL is not open, to enable the need to make the following simple settings PHP to open the OpenSSL method, in most cases, OpenSSL is not open, to enable the need to make

This article mainly introduces the implementation of PHP crawl HTTPS content, as well as the problems encountered in the solution, the need for friends can refer to the following Recently encountered an HTTPS problem while studying the hacker News

PHP's friends know that PHP itself is not a function overload of the said, not to mention the use of methods like java,c, but if we dig deeper will find that can be used in PHP Func_get_args () and Func_num_args () function to implement the function

Recently learned the URL jump when the new three super-good PHP encryption and decryption functions, seemingly discuz ... The reason for using these encryption decryption is because sometimes your own URL address is obtained after you want to crack