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| Title : |
How to know which input button of type image was pressed in a form with
multiple image buttons (_x and _y) in PHP? |
| Categories : |
PHP, Variables, HTML |
Boaz Yahav |
| Date : |
Oct 04th 1999 |
| Grade : |
5 of 5 (graded 2 times) |
| Viewed : |
5292 |
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| Tools : |
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PHP has an extension to the variable name which is _x and _y.
If you have a form like :
<FORM ACTION="DeleteMe.php3" NAME="MyForm" METHOD="POST">
<INPUT TYPE="image" NAME="Delete1" SRC="Yes.gif" VALUE="Yes">
<INPUT TYPE="image" NAME="Delete2" SRC="No.gif" VALUE="Yes">
</FORM>
When you press on one of the buttons in the form you get to DeleteMe.php3.
If you pressed on Delete1 you will find that you have two variables named
$Delete1_x and $Delete1_y which represent the coordinates of the button.
We can use this to know which button was pressed in two ways :
1. Check the coordinates of the button and by that know which one was pressed.
2. The second option, which i like better because you don't need to change the
code in case that you move the location of the buttons is that you simply check
if the variable is set like :
If(IsSet($Delete1_x)) Echo "Yes";
If(IsSet($Delete2_x)) Echo "no";
berber |
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| Script to check values being submitted by POST or GET method from a form. This script may help diagnose what variables are being supplied by a browser to other php scripts.
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