PHP difference between int and integer

Question

Is there any difference between int and integer in PHP?

Which is the newer or more recommended use?

$a = (int)\"3 euros\";
         


        

Answer 1

The difference arises when we use type hinting from php 7.0+

this is valid

function getId(): int 
{
 return $id;
}

this is not

function getId(): integer
{
 return $id;
}

the second one will expect you to return an object of a 'class integer', which will cause a strange sentence:

Uncaught TypeError: Return value of getId() must be an instance of integer, integer returned in ...