<?php

$var = (int)$var2;
$var = (int)$var2;
$var = (int)$var2;

$var = (integer)$var2;
$var = (integer)$var2;
$var = (integer)$var2;

$var = (string)$var2;
$var = (string)$var2;
$var = (string)$var2;

$var = (float)$var2;
$var = (float)$var2;
$var = (float)$var2;

$var = (double)$var2;
$var = (double)$var2;
$var = (double)$var2;

$var = (real)$var2;
$var = (real)$var2;
$var = (real)$var2;

$var = (array)$var2;
$var = (array)$var2;
$var = (array)$var2;

$var = (bool)$var2;
$var = (bool)$var2;
$var = (bool)$var2;

$var = (boolean)$var2;
$var = (boolean)$var2;
$var = (boolean)$var2;

$var = (object)$var2;
$var = (object)$var2;
$var = (object)$var2;

$var = (unset)$var2;
$var = (unset)$var2;
$var = (unset)$var2;

$var = b"binary $foo";
$var = b"binary string";
$var = b'binary string';
$var = (binary)$string;
$var = (binary)$string;