Why do we use return in PHP?

Why do we use return in PHP?

The purpose of return statement in PHP is to return control of program execution back to the environment from which it was called. If return statement occurs inside a function, execution of current function is terminated, handing over the control back to the environment from which it was called.

What does the return function do in PHP?

return ¶ return returns program control to the calling module. Execution resumes at the expression following the called module’s invocation. If called from within a function, the return statement immediately ends execution of the current function, and returns its argument as the value of the function call.

What is the purpose of a return?

A return statement is used to end the execution of the function call and “returns” the result (value of the expression following the return keyword) to the caller. The statements after the return statements are not executed. If the return statement is without any expression, then the special value None is returned.

Does return end a function PHP?

PHP return statement immediately terminates the execution of a function when it is called from within that function.

What is the purpose of a return air?

Return air ducts balance airflow in your HVAC system — The primary role of return ducts is to bring air that has been warmed or cooled back to your furnace or air conditioner. This air is returned so that it can be heated or cooled again, filtered of particulates and contaminants, and redistributed inside your home.

What is the purpose of returning a value from a function?

A return is a value that a function returns to the calling script or function when it completes its task. A return value can be any one of the four variable types: handle, integer, object, or string. The type of value your function returns depends largely on the task it performs.

Can we return two values from a function in PHP?

PHP doesn’t support to return multiple values in a function. Inside a function when the first return statement is executed, it will direct control back to the calling function and second return statement will never get executed. The multiple values can be returned from a function by using an array.

How to return a value from a function in PHP?

PHP Functions returning value. A function can return a value using the return statement in conjunction with a value or object. return stops the execution of the function and sends the value back to the calling code. You can return more than one value from a function using return array(1,2,3,4).

When does a return statement end in PHP?

PHP return statement immediately terminates the execution of a function when it is called from within that function.

How is the return keyword used in PHP?

Following example takes two integer parameters and add them together and then returns their sum to the calling program. Note that return keyword is used to return a value from a function. You can set a parameter to have a default value if the function’s caller doesn’t pass it.

What do functions do in a PHP program?

A function is a piece of code which takes one more input in the form of parameter and does some processing and returns a value. You already have seen many functions like fopen () and fread () etc. They are built-in functions but PHP gives you option to create your own functions as well. There are two parts which should be clear to you −