define("CONSTANT", "Hello world."); echo CONSTANT;

How to Define a Constant in PHP? Is $ symbol necessary?

Question Posted / abhishek baranwal

6 Answers
17725 Views
Maples, I also Faced
E-Mail Answers

Answer Posted / abhishek baranwal

define("CONSTANT", "Hello world.");

echo CONSTANT; // Outputs Hello world

define("CONSTANT", "New Value");

echo CONSTANT; // Outputs Hello world

Means once you declair the define a constant value that
will become every time it will not take new value or it
will not redeclair.if you want change in value then declair
the variables for that purpose.

Is This Answer Correct ?

13 Yes

2 No

Post New Answer View All Answers

Please Help Members By Posting Answers For Below Questions

What are the differences between GET and POST methods in form submitting?

1087

Is server side a session?

988

What are super global variables in php?

1093

How do I sort numbers in php?

1114

What is php in simple words?

1063

Require_once(), require(), include(). What is difference between them?

1033

Does https prevent csrf?

968

Is php used for frontend or backend?

1056

How do you end a function in python?

1055

What is the difference between client-side and server-side programming?

1182

What is the main difference between asp net and php?

1073

Which function is used to read a single character from a file in PHP.

1096

What are the Advantages and Application Areas of PHP?

979

How check field is empty or not in php?

1099

Is php free to use?

1054