How can PHP variables be properly compared for equality in conditional statements to avoid errors?

When comparing PHP variables for equality in conditional statements, it is important to use the triple equals operator (===) instead of the double equals operator (==). The triple equals operator checks for both value and data type equality, which helps avoid errors that can occur due to type coercion. This ensures that variables are truly equal in both value and type. 

$var1 = 5;
$var2 = '5';

if ($var1 === $var2) {
    echo "Variables are equal";
} else {
    echo "Variables are not equal";
}

Keywords

PHP variables comparison equality conditional statements

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