How can using a stable library like jQuery improve the reliability and readability of Ajax code in PHP applications?

Using a stable library like jQuery can improve the reliability and readability of Ajax code in PHP applications by providing a consistent and well-documented set of functions for making Ajax requests. This can help streamline the development process and reduce the likelihood of errors. Additionally, jQuery's syntax is often more concise and intuitive, making the code easier to read and maintain.

$.ajax({
    url: 'ajax.php',
    method: 'POST',
    data: { key: value },
    success: function(response) {
        // handle the response data
    },
    error: function(xhr, status, error) {
        // handle any errors
    }
});