In PHP, how does the assignment of a variable to FALSE differ from checking if a variable is empty?

Assigning a variable to FALSE sets its value explicitly to FALSE, while checking if a variable is empty checks if the variable is considered empty according to PHP's rules (e.g., NULL, empty string, 0, or FALSE). To assign a variable to FALSE, you use the assignment operator "=", while to check if a variable is empty, you can use functions like empty() or isset(). 

// Assigning a variable to FALSE
$var = FALSE;

// Checking if a variable is empty
$var = ""; // empty string
if(empty($var)) {
    echo "Variable is empty.";
}

Keywords

PHP variable assignment FALSE empty check comparison

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