PHP Constant | PHP Magic Constant | Part 9
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PHP Constant | PHP Magic Constant | Part 9 - Smart ERP Solution
Today's Learning Outcome :
PHP Constant | PHP Magic Constant
A constant in PHP is a name or an identifier for a simple value. A constant value cannot change during the execution of the PHP script.
1. By default, a PHP constant is case-sensitive.
2. By convention, constant identifiers are always uppercase.
3. A constant name starts with a letter or underscore, followed by any number of letters, numbers, or underscore.
4. There is no need to write a dollar sign ($) before a constant, however one has to use a dollar sign before a variable.
00:00 – 00:53 – Today’s Agenda
00:54 – 01:59 – What is PHP Constant
02:00 – 02:58 – Create PHP Constant
02:59 – 04:23 – PHP Constant Keywords | PHP Constant Arrays
04:24 – 05:52 – Constant are Global | Summary
05:53 – 07:36 – Constants Vs Variables
07:37 – 09:25 – What is PHP Magic Constant
09:26 – 13:47 – Examples of PHP Magic Constant
13:48 – 14:43 – SMARTLEARN – LMS
14:44 – 15:21 – Smart ERP Solution
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.
Note: Unlike variables, constants are automatically global across the entire script.
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