How can PHP unset() function be utilized to clear a variable's value?

To clear a variable's value in PHP, you can utilize the unset() function. This function will unset the variable, effectively removing its value and making it undefined. This can be useful when you want to clear a variable's value to free up memory or reset its value. 

$variable = "Hello, World!";
unset($variable);
echo $variable; // This will output nothing since the variable's value has been cleared

Keywords

PHP unset() variable value clear

Related Questions