Are there any potential pitfalls to be aware of when using the negation operator in PHP if statements?

When using the negation operator in PHP if statements, be aware that it can sometimes lead to unexpected results if not used correctly. Make sure to properly handle edge cases and consider the logical flow of your conditions to avoid unintended consequences.

// Example of using the negation operator in PHP if statement with proper handling
$var = 5;

// Correct way to check if $var is not equal to 10
if ($var !== 10) {
    echo "Variable is not equal to 10";
}