How do you define a constant in PHP

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How do you define a constant in PHP?

its about How do you define a constant in PHP


Asked On2019-09-06 15:46:36 by:Annaliya

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A constant is an identifier (name) for a simple value. The value cannot be changed during the script.

A valid constant name starts with a letter or underscore (no $ sign before the constant name).

Note: Unlike variables, constants are automatically global across the entire script.


Create a PHP Constant

To create a constant, use the define() function.

Syntax

define(namevaluecase-insensitive)

Parameters:

  • name: Specifies the name of the constant
  • value: Specifies the value of the constant
  • case-insensitive: Specifies whether the constant name should be case-insensitive. Default is false

Example

Create a constant with a case-sensitive name:

<?php
define("GREETING""Welcome to W3Schools.com!");
echo GREETING;
?>

Answerd on:2019-09-09 Answerd By:Tanisha-Garg

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A constant is an identifier (name) for a simple value. The value cannot be changed during the script.

To create a constant, use the define() function.

Syntax

define(namevaluecase-insensitive)

Parameters:

  • name: Specifies the name of the constant
  • value: Specifies the value of the constant
  • case-insensitive: Specifies whether the constant name should be case-insensitive. Default is false

Answerd on:2019-09-09 Answerd By:Tejasurve

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