Retrieve File Name from File Uploaded Column

Hello Team,

Greetings !

I am using phprunner 10.5 build 36520 on windows 10 and wamp server having mysql 8 CE on backend.

I have a query when I upload a file, phprunner adds some 8 character random text with a underscore preceding and containing the extension of the filename with some other details. I don't have any query with the file name, but I have a different php program which needs to retrieve just the file name from this column for further processing.

Can you please give me a hint as to how to retrieve just the file name by using plain php program from below string by using any php function ?

[{"name":"files\/test document_87176dkn.txt","usrName":"test document.txt","size":0,"type":"text\/plain","searchStr":"test document.txt,!:sStrEnd"}]

Please try to give me a purely php solution to retrieve filename given in bold, as I am not much conversant with java.

Your expert help will just make my day !

Thanks in advance.