PHP Magic Constants

نشر بتاريخ 2024-05-17 07:40:16

2كيلو بايت

PHP Predefined Constants

PHP has nine predefined constants that change value depending on where they are used, and therefor they are called "magic constants".

These magic constants are written with a double underscore at the start and the end, except for the ClassName::class constant.

Here are the magic constants, with descriptions and examples:

Constant	Description
__CLASS__	If used inside a class, the class name is returned.	Try it »
__DIR__	The directory of the file.	Try it »
__FILE__	The file name including the full path.	Try it »
__FUNCTION__	If inside a function, the function name is returned.	Try it »
__LINE__	The current line number.	Try it »
__METHOD__	If used inside a function that belongs to a class, both class and function name is returned.	Try it »
__NAMESPACE__	If used inside a namespace, the name of the namespace is returned.	Try it »
__TRAIT__	If used inside a trait, the trait name is returned.	Try it »
ClassName::class	Returns the name of the specified class and the name of the namespace, if any.	Try it »

Note:

The magic constants are case-insensitive, meaning __LINE__ returns the same as __line__.

PHP Introduction

PHP code is executed on the server. What You Should Already Know Before you continue you...

بواسطة 2024-05-17 07:08:40 0 2كيلو بايت

PHP Constants

Constants are like variables, except that once they are defined they cannot be changed or...

بواسطة 2024-05-17 07:39:53 0 3كيلو بايت

PHP Operators

PHP Operators Operators are used to perform operations on variables and values. PHP divides the...

بواسطة 2024-05-17 07:41:39 0 3كيلو بايت

مقدمة: في ظل التطورات السريعة للتكنولوجيا والابتكار، أصبح التعلم الآلي...

بواسطة 2024-05-14 13:56:58 0 3كيلو بايت

Short Hand If To write shorter code, you can write if statements on one line....

بواسطة 2024-05-17 07:47:03 0 2كيلو بايت