PHP Tutorials

We first prepare the MySQL data table, assuming that the project has a record of student information table student, and there are id,name,sex,age to record the student's name, gender, age and other information. CREATE TABLE ' student ' ( ' id '

Before introducing the Yii built-in UI components, let's look at how to customize the components, which also helps to understand the use of cwidget, which is the Init () and run () method of overloading CWidget. Class Mywidget extends

anonymous functions When it comes to closures, we have to think of anonymous functions, also called closure functions (closures), which seems to be the main implementation of PHP closures. Declaring an anonymous function is this: $func = function ()

PHP's Isset () function is commonly used to detect whether a variable is set Format: bool Isset (mixed var [, mixed Var [, ...]) Function: Detect whether the variable is set return value: Returns FALSE if the variable does not exist Returns FALSE

PHP has been adding a magic method called __invoke since version 5.3, which allows the object to be called directly after the instance is created. As shown in the following example: Class Testclass{public function __invoke{print "Hello World";}} $n

Name resolution rules Before we describe the name resolution rules, we'll look at some important definitions: namespace name definition Unqualified names unqualified Name Identifiers that do not contain namespace separators in the name, such as

C # Anonymous Methods As we have already mentioned, a delegate is used to refer to a method that has the same label as it. In other words, you can use a delegate object to invoke a method that can be referenced by a delegate. The anonymous method

The registration procedure unifies the single entrance, the core judgment is the Checkip place, only needs to make a game_id judgment in the non-real-name authentication template procedure. Because too sure, anxious to get off the psychology,

The example in this paper describes how to get all the fixed seed links in a Web page in bulk by PHP. Share to everyone for your reference, as follows: Often download links more time, like once all the links added to Thunderbolt or electric stove,

The paginate in CakePHP's controller is a function that gets paged data. With the helper's paginator, it's easy to make a page list, sort the list page. But when I started learning to use cakephp, I had a problem that always bothered me. How does

PHP Magento Backstage No solution Many friends may have the same experience, Magento in the server configuration domain name is normal access, but after the local configuration can not log in the background, the account password login when found

Velocity Fifth Application Example---get an index of the current iteration #foreach ($key in $map. KeySet ()) $velocityCount > $key: $map. Get ($key) #end $ Velocitycount get the current iteration index Velocitycount variable name can be modified

error level for PHP First you need to know what PHP errors are. Up to php5.5, a total of 16 error levels Note: When trying the following code, make sure to open error_log: Error_reporting (E_all); Ini_set (' display_errors ', ' on '); E_error This

If a method needs to accept a callback method as a parameter, we can write Output: Do STH callback But we are not sure whether the callback method can be called, so there is a lot of extra work to be done to check whether this callback method

Although you can resize a picture arbitrarily by specifying the width and height of the image in HTML, this method does not reduce the number of pixels in the image. The size of the graphics file does not change, and of course it does not speed up

The basic usage of PHP regular expressions is described in this article. Share to everyone for your reference, as follows: demo1.php demo2.php demo3.php demo4.php demo5.php The demo6.php demo7.php demo8.php demo9.php demo10.php demo11.php

In PHP, the identity of the user is often authenticated. This article is intended to discuss the processing of the password, that is, the encryption of the password processing. MD5 I believe that many PHP developers in the first contact with PHP,

Before a blog called The Magic Lab read a "PHP session principle of thorough analysis" of the article, the author from the point of view of the use of the session is very good in the code in the course of operation, the changes in each link and

The integer type is Interger, and in 32-bit operating systems, the valid range is -2146483648~+2146483646. Integer values can be specified in decimal, hexadecimal, or octal, preceded by an optional symbol "-" or "+" to identify positive or negative.

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