php return types

Following types for return types can be declared.

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

1. What are the different types of PHP?
2. What is return void PHP?
3. How can I return multiple variables in PHP?
4. Which PHP function does return the data type and value?
5. What does PHP stand for?
6. What is type hinting in PHP?
7. What is return in PHP function?
8. What is strict type PHP?
9. What are the new features in PHP 7?
10. How a variable is declared in PHP?
11. How do you do a while loop in PHP?
12. Can a PHP function return an array?

What are the different types of PHP?

PHP Data Types

• String.
• Integer.
• Float (floating point numbers - also called double)
• Boolean.
• Array.
• Object.
• NULL.
• Resource.

What is return 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 can I return multiple 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.

Which PHP function does return the data type and value?

The gettype() function is an inbuilt function in PHP which is used to get the type of a variable.

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 is type hinting in PHP?

In simple word, type hinting means providing hints to function to only accept the given data type. In technical word we can say that Type Hinting is method by which we can force function to accept the desired data type. In PHP, we can use type hinting for Object, Array and callable data type.

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.

What is strict type PHP?

With PHP 7 we now have added Scalar types. Specifically: int, float, string, and bool. ... In strict mode, only a variable of exact type of the type declaration will be accepted, or a TypeError will be thrown. The only exception to this rule is that an integer may be given to a function expecting a float.

What are the new features in PHP 7?

Key Takeaways

• PHP 7.0 added scalar type declarations for strings, integers, floating-point numbers, and booleans.
• PHP 7.0 added support for return type declarations.
• PHP 7.1 added support for nullable parameter types and return types.
• void is a valid return type as of PHP 7.1.

How a variable is declared in PHP?

In PHP, a variable is declared using $ sign followed by variable name. The main way to store information in the middle of a PHP program is by using a variable.

How do you do a while loop in PHP?

In PHP, we have the following loop types: while - loops through a block of code as long as the specified condition is true. do... while - loops through a block of code once, and then repeats the loop as long as the specified condition is true.

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.