multiple buttons on a form

I have a clear button that I want to tie into some php coding. how do I detect if the clear button is pressed. When the user press clear, i’m going to have it update a sql table to clear out entries. but first I need to know when the button is pressed.

<input name="Reset1" type="reset" value="clear" />

Answer

You check the post or get data from your form, using the name of the button:

<form action='' method='post'>
  <button type='submit' name='reset'>Clear</button>
  <button type='submit' name='submit'>Submit</button>
</form>

PHP (after submission):

if(isset($_POST['reset'])) { /* ...clear and reset stuff... */ }
else if(isset($_POST['submit']) { /* ...submit stuff... */ }

Alternatively, you have two buttons with the same name, which both submit your form, and if/else their values:

<form action='' method='post'>
  <button name='submit' value='0'>Clear</button>
  <button name='submit' value='1'>Submit</button>
  <button name='submit' value='2'>Something Else</button>
</form>

PHP (after submission):

if($_POST['submit']==0)      { /* ...clear and reset stuff... */ }
else if($_POST['submit']==1) { /* ...submit stuff... */ }
else if($_POST['submit']==2) { /* ...do something else... */ }