unset function

This article gives you the content is about PHP constants and variables of the simple introduction, there is a certain reference value, the need for friends can refer to, I hope to help you. Constant 1, constant, as the name implies is a normal

Processing cookies in JavaScript is complicated because of its well-known interface, namely the doucmentcookie attribute of BOM. This attribute is unique in that it will show different behaviors in different ways. When used to obtain the property

1.gettype () The type used to get the variable2.var_dump () To view the type and value of an expression3. Define a string that is enclosed in single quotes, and double quotes will parse the character inside the string.The 4.HERODOC structure is 5.

Mysql database functions Query statement:SELECT field name FROM table name.Sort order by field name to be sorted desc: query in reverse order.The number of limit queries starting from the specified number: the specified number.Separate multiple

The following describes the related functions in php. We can use these functions to obtain the memory usage of php. I hope the example can help you. The following describes the related functions in php. We can use these functions to obtain the

Summary of Magic Methods in PHP: __construct, __destruct, __call, __callstatic,__get, __set, __isset, __unset, __sleep, __wakeup, __toString , __set_state, __clone and __autoload1, __get, __setThese two methods are designed for properties that are

1.VC9 is specifically designed for IIS, and VC6 is provided for other Web services software, such as Apache.Php.ini-developmen and Php.ini-production appear in the new version of 2.PHP5These files have a new name:Php.ini-production corresponds to

Copy codeThe Code is as follows:Class TEST{Const NAME = 'value'; // constantPublic $ name = 'value'; // attributePublic function name () // Method{Echo 'value ';}}?>In this case, attributes and methods can use three different keywords: public,

PHP is a great web development language and flexible language, but we can see some mistakes made by php programmers. I made the following list to list the 10 errors that PHP programmers often make, most of which are related to security. PHP is a

The array in PHP is an ordered ing (1-to-1 relation key-value ). Array is a combination of arrays, dictionaries, and collections. The key can be int or string. Value can be of any type. The key is forcibly converted as follows: 1. A string integer

Yesterday saw two interview questions, there are two, the first many people have to answer, the second way but few people answer. I am learning php myself recently, so this article is based on PHP to bring the second analysis today.　　Two interview

{Code...} above is my own running result. In the manual, I do not know what to say: reference is not something as described above, and reference is not a pointer. This means that the following structure will not produce the expected results: {code...

Article One: http://blog.csdn.net/21aspnet/article/details/6973405Brief introductionLet's take a look at the following procedure: We have never manually opened the relevant process of PHP, it is running with Apache boot; PHP is

Summarize the PHP Magic method, which is not mentioned above, here marked red;1, __get, __setThese two methods are designed for properties that are not declared in the class and their parent class:__get ($property) accesses this method when an

Document directory I. Introduction to types Ii. Boolean Iii. Integer type Iv. String 5. Array PHP supports eight primitive types, including: Four scalar types: Boolean, integer, float, and string ); Two composite types: array and object

For more information, see the following: Storm blog http://www.laruence.com/2008/08/12/180.html Baidu R & D center's blog http://stblog.baidu-tech.com /? P = 763 Wang xingbin's blog http://blog.csdn.net/wanghao72214/article/details/3916825

Magic methods in PhP5 In PHP versions later than PHP 5, classes in PHP can use magic methods. It specifies that all methods starting with two underscores (_) are retained as magic methods. Therefore, we recommend that you do not start with

In fact, the operations on arrays in any computer language are a learning, and PHP is no exception. Next I want to introduce 10 tips and related functions for array Operations in PHP. In fact, the operations on arrays in any computer language are a

This article briefly summarizes the use of foreach and in_array in PHP, including frequently encountered problems and other information. It is very practical. If you need it, you can refer to it. This article briefly summarizes the use of foreach

In PHP, session management includes common sessions and cookies, which are two sessions on the server and client respectively. Let's take a look at them. In PHP, session management includes common sessions and cookies, which are two sessions on the