Pass parameters to the pop-up page instance in the php page

1. In php pages, it is often used to pass parameters to the pop-up page and operate in the pop-up page

2. Two methods, the screenshot is one

3. The most common one is to use hiden to hide the field. When the button is clicked, the parameter value to be passed is passed to the hidden field and obtained in the pop-up window when needed.

<input type="hidden" name="win_hidden" class="win_id" value="" />

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