Question

explain used define function in php​

Answer 1

Explanation:

PHP has a large number of built-in functions such as mathematical, string, date, array functions etc. It is also possible to define a function as per specific requirement. Such function is called user defined function. A function is a reusable block of statements that performs a specific task.

Answer 2

Explanation:

PHP User Defined Functions

A function is a block of statements that can be used repeatedly in a program. A function will not execute automatically when a page loads. A function will be executed by a call to the function.