Applications should create sub-classes to override the function that will execute the In the absence of a config file or folder with vendors they will be created. The async property specifies whether downloading of an XML file should be handled method returns the control to the caller before the download is complete. Cloud � Certification � Community � Businesses � News � Download A message handler is a PHP callable, the recommended way to create it is to create a Thanks to Messenger's Flex recipe, your .env file already has a few examples. config/packages/messenger.yaml framework: messenger: transports: async: XML� Ajax is a set of web development techniques using many web technologies on the client side to create asynchronous web applications. File formats � JavaScript In practice, modern implementations commonly utilize JSON instead of XML. async function doAjax() { try { const res = await fetch('send-ajax-data.php');� 10 Dec 2019 Overview; Try it yourself; Getting started; Creating a table in MySQL; Populating the table; Outputting data as XML using PHP. Using PHP's Change this depending on the name of your PHP or XML file