String Function in PHP Program

String Function in PHP Program. PHP program to print the string using function. By using this program we can print the elements and string using functions. A function is a collection of statements that can be used over and over again in a program. When a page loads, a function will not run automatically. A call to a function will cause it to be performed. A function is a piece of code that takes another input in the form of a parameter, processes it, and then returns a value. Although these are built-in functions, PHP also allows you to construct your own.

<?php
function inlarn()
{
echo "inlarn";
}

inlarn();
?>

 

Output:

inlarn

Functions in PHP Programming

In PHP, a function is a reusable chunk of code that performs a specific task. When called, functions can either return values or simply perform an operation without returning anything. PHP has over 700 built-in functions that perform various tasks. There are two types of functions available in PHP: Built-in library functions: PHP comes with a large number of built-in library functions.

Functions that are defined by the user: In addition to the built-in functions, PHP allows us to create our own custom functions, which are known as user-defined functions. There are a few advantages to using functions: Functions allow you to run the same code multiple times. Long programmes are broken down into smaller components using functions.