<?php

$num = "2.75";

// Cast to integer

$int = (int)$num;

echo gettype($int) . "<br>"; // Outputs: integer

echo $int . "<br>"; // Outputs: 2

// Cast to float

$float = (float)$num;

echo gettype($float) . "<br>"; // Outputs: double

echo $float; // Outputs: 2.75

?>