PHP 7 Return Type Declarations - PHP7

What is PHP 7 Return Type Declarations?

In PHP 7, a new characteristic, Return type declarations have been introduced. Return type declaration specifies the type of value that a meaning should return. Following types for return types can be affirmed.

• int
• float
• bool
• string
• interfaces
• array
• callable

Example - Valid Return Type

<? Php Declare (strict types = 1); Function returnIntValue (into $value): into { Return $value; } Print (returnIntValue (5)); ?>

It produces the following browser output –

5

Example - Invalid Return Type

<? Php Declare (strict types = 1); Function returnIntValue (into $value): into { Return $value + 1.0; } Print (returnIntValue (5)); ?>

It produces the following browser output –

Fatal error: Uncaught Type Error: Return value of returnIntValue () must be of the type integer, float returned...