define how to

The definition of APC constant is compared with define of PHP. Recently, when I was working on the preliminary code architecture of the cloud platform, I encountered a constant definition speed comparison problem, so I would like to make a

Use hidef extension in PHP instead of define to improve performance, hidefdefine. In PHP, hidef extension is used instead of define to improve performance. hidefdefine requires a new constant to open the local config. PHP file, think of hidef tested

A constant is a simple identifier. This value cannot be changed during script execution (in addition to the so-called magic constants, they are not constants). Constants are case sensitive by default. Usually, constant identifiers are always

Macro definition ' DefineRepresents a string with a specified identifier (that is, the name), which is in its general form:' Define identifier (macro name) string (macro content)such as: ' Define signal stringIts function is to specify the

ES6 (ECMAScript 6) is the upcoming new version of the JavaScript language standard, code-named Harmony (meaning of harmony, obviously did not keep pace with our country, we have entered the Chinese Dream version). The last standard was enacted in 200

css|frontpage| Web page Note: The latest version of FrontPage is Frontpagexp (FrontPage 2003), this article is about Frontpage2000, but the method described in this article is basically applicable in Frontpagexp! Another, This is only discussed in

Original address: http://blog.csdn.net/xiaogou56a/article/details/21340213Define used to define modulesRequire used to load modules1Because defining a module may depend on other modules, and of course the simplest case is to not rely on other

We often see a lot of great apps with some very beautiful controls, and the user experience is great. For example, ToggleButton is a very good example, the iOS system below the exquisite ToggleButton now can be implemented under Android, but also

Objective C # Principle 22: Define external interfaces with events Item 22: Define outgoing interfaces with events You can use events to define some external interfaces for your type. The event is based on the delegate, because the delegate can

Recall: # define usage, Ansi c stipulates that: # can contain spaces or tabs, and # can contain spaces between the command and other parts. It can appear anywhere and the scope ranges from the definition to the end of the file. Before preprocessing,

1. Difference(1) Definition, execution time, scopeDefinition, Execution time: #define Pchar char *char *pchar;The definition of the format difference, it is obvious to note that define is not a semicolon (text substitution), and typedef is a comma

How to define PHP_VERSION_ID and php_version_id PHP_VERSION_ID is an integer that indicates the current PHP version. It is used from php5.2.7, for example, 50207 indicates 5.2.7.Macros related to the PHP version are defined in the phpsrcdir/main/php_

We usually define non-constant values as constants, which are generally represented in all capitals, with no dollar sign in front of them, and can reduce errors in team development. So what's the difference between a define and a const?1, const is a

About define (' Discuz_root ', substr (DirName (__file__), 0,-7)); Understanding define (' Discuz_root ', substr (DirName (__file__), 0,-7)) ;Get site root directoryFor the above statement has not understood what is meant to check the relevant

For example: Here the program file starts with the following #define statement Copy Code code as follows: #define N 10 #define PI 3.14 #define MAX 10000 #define HEIGTH 6.65 ... ... Let's say the program is running

1. Const is used for class member variable definition, once defined and cannot change its value. Define defines global constants that can be accessed everywhere.2. Define cannot be defined in a class and const can.3. Const cannot define constants in

css|frontpage| Tips When many people find it convenient to define CSS in DW4, they start complaining that FP2000 can't define CSS, or even criticize how bad FP2000 is. In fact, it's easy to define CSS in FP2000, even in some ways it's easier to

Parse the differences between static, const, and define in php. Define: macros can be used not only to replace constant values, but also to replace expressions or even code segments. (Macros have powerful functions but are prone to errors, so their

1. Simple define Definition # Deprecision MAX 1000 A simple max is defined. It represents 1000. If you writeFor (I = 0; I {................}The compiler replaces MAX with 1000 before processing this code. 2. define's "Function Definition" Define can

This article mainly introduces how to use hidef extension in PHP to replace define to improve the performance. This article focuses on testing the performance of hidef and introduces the installation method and use example. For more information, see