What is the significance of the error "PHP Fatal error: Uncaught ArgumentCountError" in PHP 7.1?

The "PHP Fatal error: Uncaught ArgumentCountError" occurs when a function or method is called with an incorrect number of arguments. To solve this issue, you need to ensure that the correct number of arguments are passed when calling the function or method. Check the function definition to see how many arguments it expects and adjust the call accordingly.

// Incorrect function call with the wrong number of arguments
function greet($name) {
    echo "Hello, $name!";
}

// Correct function call with the correct number of arguments
greet("Alice");