php return function

1. What is return in PHP function?
2. How do I return a PHP file?
3. Can a PHP function return an array?
4. How do you return a function?
5. What does PHP stand for?
6. What are PHP built in functions?
7. What is return false in PHP?
8. How do you exit a function in PHP?
9. How can I return two variables in PHP?
10. Can PHP function return multiple values?
11. What is void PHP?
12. How PHP files can be accessed?

What is return in PHP function?

Definition and Usage. The return keyword ends a function and, optionally, uses the result of an expression as the return value of the function. If return is used outside of a function, it stops PHP code in the file from running.

How do I return a PHP file?

If the file is public, then you can just serve it as a static file directly from the web server (e.g. Apache), and make download. php redirect to the static URL. Otherwise, you have to use readfile to send the file to the browser after authenticating the user (remember about the Content-Dispositon header).

Can a PHP function return an array?

In PHP you can return one and only one value from your user functions, but you are able to make that single value an array, thereby allowing you to return many values.

How do you return a function?

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.

What does PHP stand for?

PHP (recursive acronym for PHP: Hypertext Preprocessor ) is a widely-used open source general-purpose scripting language that is especially suited for web development and can be embedded into HTML.

What are PHP built in functions?

Built in functions are predefined functions in PHP that exist in the installation package. These PHP inbuilt functions are what make PHP a very efficient and productive scripting language. The built in functions of PHP can be classified into many categories.

What is return false in PHP?

But this is not to be interpreted as "a false return value means something went wrong". Many functions return false because that's the real outcome of the execution upon success. Consider for example in_array() .

How do you exit a function in PHP?

The exit() function in PHP is an inbuilt function which is used to output a message and terminate the current script. The exit() function only terminates the execution of the script. The shutdown functions and object destructors will always be executed even if exit() function is called.

How can I return two variables 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.

Can PHP function return multiple values?

A function can not return multiple values, but similar results can be obtained by returning an array.

What is void PHP?

A void return type has been introduced. Functions declared with void as their return type must either omit their return statement altogether, or use an empty return statement. null is not a valid return value for a void function.

How PHP files can be accessed?

If you installed a web server in your computer, usually the root of its web folder can be accessed by typing http://localhost in the web browser. So, if you placed a file called hello. php inside its web folder, you can run that file by calling http://localhost/hello.php.