# Recommended 10 articles for define () function

Source: Internet
Author: User
Tags php define
The Define () function defines a constant.define () functions: Defines a constant. Constants is much like variables, except for the following differences: constants [constant] and variables [variable] There are many similarities, so it is easy to confuse; Let's enumerate the differences between constants [constant] and variables [variable]: A constant's value cannot be changed after it is set a constant value cannot be changed after it has been specified; constant NA Mes does not need a leading dollar sign (\$) When setting constants, it is not necessary to precede the "\$" symbol; constants can B1. Dive into PHP defi

1. Summary of usage of PHP defined () function

Description: The Define () function defines a constant.define () functions to define a constant. Constants is much like variables, except for the following differences: constants [constant] and variables [variable] There are many similarities, so it is easy to confuse; Let's enumerate the constants [constant] ...

2. About PHP define () functions 10 articles recommended

Summary: PHP uses the Define () function to define a constant. The so-called constant refers to the value of the amount of constant, this article collects a few about the PHP constants of the article, I hope that you understand the PHP constants help, come together to see it. The definition of 1.PHP constants and the use of examples to explain constants we can understand as the amount of constant value. Constants are defined so that they cannot be changed anywhere else in the program script. Constants are defined by means of letters, underscores, and numbers, but one thing to note is that the first letter of our constants cannot begin with numbers. In...

3. Summary of concepts about PHP constants

Summary: PHP uses the Define () function to define a constant. The so-called constant refers to the value of the amount of constant, this article collects a few about the PHP constants of the article, I hope that you understand the PHP constants help, come together to see it.

4. PHP constant declaration and the use of-php constants to define the method of explanation

Summary: Constants can be understood as unchanging quantities. Constants are defined and cannot be changed anywhere else in the script. A constant is made up of English letters, underscores, and math. But the numbers do not appear as initial letters. Use the Define () function in PHP to define constants in the following syntax format:

5. PHP Object-oriented All-finalstaticconst keyword usage

Summary: This keyword can only be used to define classes and define methods, you cannot use the final keyword to define member properties, because final is the meaning of constants, we define constants in PHP using the Define () function, so you cannot use final to define member properties.

6. PHP Constants

Summary: Set PHP constants to set constants, use the Define () function-it uses three parameters: the first parameter defines the name of the constant The second parameter defines the value of the constant and the optional third parameter specifies whether the constant name is case sensitive. The default is False. The following example creates a case-sensitive constant with a value of "Welcome to w3school.com.cn!" : Instance <?php define ("Greeti ...

7. How to define and use constants in PHP _php tutorial

Summary: How constants are defined and used in PHP. 1. Custom constants * must be defined with function define () * After definition, its value can no longer be changed * Use the constant name directly, not like a variable in front of the \$s such as: define ("PI", 3.

8. Detailed usage of the PHP define () function and the defined () function _php Tutorial

Summary: Drill down into the PHP define () function and the usage of the defined () function. The Define () function defines a constant. The purpose of the Define () function is to define a constant. Constants is much like variables, except for the following differences: constant [Constan

9. Explore the PHP define () function and defined () function using the _php tutorial

Introduction: Explore the PHP define () function and the defined () function using a detailed explanation. The Define () function defines a constant. The purpose of the Define () function is to define a constant. Constants is much like variables, except for the following differences: constant [Constan

10. Go to PHP constants _php Tutorial

Summary: Play PHP constants. Naming rules for constants naming: the same naming rules as variables method: Define () function format: Define (constant name, concrete value); Example: Define (pi,3.14); Constants are the same as variables: 1: Naming

Define () Do you want to capitalize? Remember that you have seen other PHP tutorials before, define () is uppercase, as if uppercase and lowercase is not the same, and ask which great God to explain

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