Operators

Arithmetic

Use familiar operators for numbers.

<?php
echo 10 + 3, "\n";
echo 10 % 3, "\n";
echo 2 ** 3, "\n";

Assignment shortcuts

Combine update and assign.

$n = 5;
$n += 2;
echo $n, "\n";

Comparisons

Prefer strict comparisons to avoid surprising coercions.

var_dump(5 === "5"); // false
var_dump(5 == "5");  // true

Logical operators

• && / and for both true
• || / or for either true
• ! to negate
• Parentheses clarify mixed expressions