element when an AJAX requests is about to be sent Important: As of jQuery 1.4, if the JSON file contains a syntax error, the request will usually fail silently. Avoid frequent hand-editing of JSON data for this reason.As of jQuery 1.5, all of jQuerys Ajax methods return a superset of the XMLHTTPRequest object. In this tutorial, we are using jQuery for reading JSON data from a PHP page via AJAX.It uses jQuery getJSON function to read a JSON data returned from a PHP page. It iterates JSON object array and appends results to HTML. Jquery ajax json arraylist is the worlds number one global design destination, championing the best in architecture, interiors, fashion, art and contemporary. Jquery Ajax JSON.