What does (int) $_GET['page'] mean in PHP?

Question

I tried looking up (int) but could only find documentation for the function int() in the PHP manual.

Could someone explain to me what the above

Answer 1

Simple example will make you understand:

var_dump((int)8);
var_dump((int)"8");
var_dump((int)"6a6");

var_dump((int)"a6");

var_dump((int)8.9);
var_dump((int)"8.9");
var_dump((int)"6.4a6");

Result:

int(8)
int(8)
int(6)

int(0)

int(8)
int(8)
int(6)