PHP Functions

PHP Admin 13-02-2025

Explanation:

PHP Functions

The real power of PHP comes from its functions.

PHP has more than 1000 built-in functions, and in addition you can create your own custom functions.

PHP Built-in Functions

PHP has over 1000 built-in functions that can be called directly, from within a script, to perform a specific task.

PHP User Defined Functions

Besides the built-in PHP functions, it is possible to create your own 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.

Create a Function

A user-defined function declaration starts with the keyword function, followed by the name of the function:


Code:

<?php
 
function hello(){
  echo "Hello Everybody.<br>";
}

function yahoo(){
  echo "Hello Yahoo baba.<br>";
}

hello(); 
hello();

yahoo();
echo "Hey this is an example.";
hello();
hello();
?>

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