How can one ensure proper handling of boolean values when using isset() in PHP?

When using isset() in PHP to check if a variable is set, it's important to keep in mind that isset() returns true even if the variable is set to false. To ensure proper handling of boolean values, you can use the strict comparison operator (===) along with isset() to check if the variable is set and is strictly equal to true. 

// Example of ensuring proper handling of boolean values with isset()
$var = false;

if (isset($var) && $var === true) {
    echo "The variable is set to true.";
} else {
    echo "The variable is not set to true.";
}

Keywords

isset boolean values handling PHP programming

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