<?php

6 % 2;
6 << 2;
6 >> 2;
6 & 2;
6 | 2;
6 ^ 2;
6 <> 2;
6 <=> 2;
6 and 2;
6 or 2;
6 xor 2;
$a = 1;
$a += 1;
$a -= 1;
$a *= 1;
$a **= 1;
$a /= 1;
$a .= 1;
$a %= 1;
$a &= 1;
$a |= 1;
$a ^= 1;
$a <<= 1;
$a >>= 1;
$a ??= 1;