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What is return value in PHP?
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). Note that return keyword is used to return a value from a function.
Does a function have to return a value PHP?
3 Answers. PHP functions do not need to return anything, and I doubt it would negatively affect the performance if you didn’t return anything. If anything, it would positively affect the performance. No, returning a value from a function does not improve the speed of your script.
How many values can a function return in PHP?
You can’t return more than one value. This is because the whole purpose of the return statement is to return control of the script to the calling module. Once the first return statement is executed, the function “ends”, so to speak.
Can I have multiple return values 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. However, there are ways to work around this limitation. The multiple values can be returned from a function by using an array.
What does “return” mean in PHP?
return (PHP 4, PHP 5, PHP 7, PHP 8) 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 does return true do in a PHP function?
then it will stop the program execution immediately and return its argument as a value of the program.
Do PHP functions have to return?
PHP functions do not need to return anything, and I doubt it would negatively affect the performance if you didn’t return anything. If anything, it would positively affect the performance.