When developing with PHP, var_dump is generally used to print debugging errors, which is simple and clear. But when doing interface development or jquery data interaction, debugging is not convenient, especially when I don’t know what the data posted or the value fed back is. I don’t know if there are any plug-ins that can display the post data and feedback data of the web page. Sometimes I can’t see it or it’s not very clear when using Google’s own developer tools. It would be best to have a simple instruction manual, thank you.