Which php code

https://asprunner.com/forums/topic/26891-changing-the-label-of-the-custom-button-on-the-fly

... for inspiration purposes only ...

Dear, thank you for your answer. But this is not the answer to the question I asked. I probably was too vague about the question I asked.
I have custom button (custom_button1) , with label text = "my button". By clicking on the button I want to write the label text to a variable, I need code for that. Unfortunately I can't find any example code, what code can I use for this? Thanks.

https://stackoverflow.com/questions/13717816/how-can-i-make-button-label-dynamic-using-javascript

... for inspiration purposes only ..., one proposal is exactly talking about your wished functionality, except
your wish to get it in PHP code.

Hello,

I think this article describes what you are looking for.

https://stackoverflow-com.translate.goog/questions/21299399/jquery-get-the-title-of-a-button?_x_tr_sl=en&_x_tr_tl=es&_x_tr_hl=es&_x_tr_pto=rq

Greetings,
fernando