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.

Why would we want to use a return statement in a function?

A return statement ends the execution of a function, and returns control to the calling function. Execution resumes in the calling function at the point immediately following the call. A return statement can return a value to the calling function.

Does a function always need a return?

NO, a function does not always have to have an explicit return statement. If the function doesn’t need to provide any results to the calling point, then the return is not needed.

What does include return in PHP?

Handling Returns: include returns FALSE on failure and raises a warning. Successful includes, unless overridden by the included file, return 1 . It is possible to execute a return statement inside an included file in order to terminate processing in that file and return to the script which called it.

Does return end a function PHP?

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. return also ends the execution of an eval() statement or script file. If return is called from within the main script file, then script execution ends.

What is difference between ECHO and return in PHP?

echo outputs content to the console or the web browser. Example: echo “Hey, this is now showing up on your screen!”; return returns a value at the end of a function or method.

When should I use return?

return is used to send a value back to where’s it’s called from. You use it if you want to return a value. If you don’t have a return statement, it’s the same as return undefined .

Can we use return in if statement?

Yes. The return here will take the control out of method. The return here is probably used in order to “improve” the performance of the method, so that other comparisons are not executed, once the needed scenario is performed. However, it’s not good practice to have multiple return points in a method.

When should a function return a value?

If a function is defined as having a return type of void , it should not return a value. In C++, a function which is defined as having a return type of void , or is a constructor or destructor, must not return a value. If a function is defined as having a return type other than void , it should return a value.

When must a function return by value?

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.

How do I return a PHP file?

PHP return statement immediately terminates the execution of a function when it is called from within that function. This function is also used to terminate the execution of an eval() function or script file….Return values.

Is echo the same as return?

You only use echo when you want to print something onto the screen or within the markup i.e text on the screen, path to an image or title on the top of an html page. Return is commonly used in a function to return the output of the function i.e.