组合框选择$ _POST

Question

I have a page with multiple submit buttons and a text input. When the text input is filled and any button is pressed, the page $_POSTs to itself and I can grab the information and manipulate it again.

However, I wish for the page to $_POST when a combobox selection is chosen without pressing any of the submit buttons.

Is this possible using PHP or must I use javascript to triger a $_POST call?

Answer 1

you can use the onchange="" property in the HTML so in html inside the form you do:

<select onchange="javascript:this.form.submit();">
  <option value="1">num1</option>
  <option value="2">num2</option>
  <option value="3">num3</option>
</select>