What is the usage of function() in php

function() in php is a grammatical structure used to define a function. Its usage is: 1. Use the "function" keyword to specify the definition of a new function; 2. In the "function()" brackets Write the parameter list of the function in; 3. Write the function body in the curly braces of "function(){}" and end with ";".

Operating system for this tutorial: Windows 10 system, php8.1.3 version, Dell G3 computer.

Usage of function() in php:

function() in php is a grammatical structure used to define a function

1. Use " function" keyword specifies the definition of a new function;

2. Write the parameter list of the function in "function()" brackets;

3. In "function(){}" Just write the function body in curly braces and end with ";"

function greet($name) { echo "Hello, $name!"; }

In the above code, a function named greet is defined, and its parameters are named $name. The function body prints the greeting in response to the input parameter $name. The

function() keyword is a way to define and execute reusable code blocks in PHP. It can accept any number of parameters and return results when needed. return value. Using functions results in cleaner, easier to maintain, and more readable code.

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