我有一个带有php for循环的简短html表单，允许用户在页面上最多可以构建相同的表单十次

The $i variable is each field and is populated in the 'inp' boxes which are just input boxes and sboxes which are just select boxes. There is only one form when the page loads and it has all the criteria for a trainer to be added. The trainer name would be trainer_name1 on the first form. If they chose to hit the new button they could fill out the information for another trainer, the input box for the second form for 'name' would just be trainer_name2 and all the other fields are named respectively to what they are in the form. As new forms are built in just adds the next consecutive number onto the end of whatever the field might be named.The $i variable is each field and is populated