Data is always lost when accessing the database!

Data is always lost when accessing the database in the background !!! & Nbsp; my website sometimes submits long articles in the background using an editor, and the response is slow, after the response, not only did the data not be added to the database, but the editor was also cleared. it was very troublesome. if the added articles were too short, this would not happen easily. who knows how to solve this problem? & Data is always lost when accessing the database in the nb background !!!
When I add a long article in the editor in the background on my website, sometimes I submit it at a time, and the response is slow. after the response, I not only did not add data to the database, but also cleared it in the editor, which is very annoying, if the added article is short, it is not easy to see this situation. who knows how to solve it?
The database type is text, which generally does not exceed the character length. Database php shared:
------ Solution --------------------
Print your insert SQL execution to see if an error is returned.