Which image is clicked?

[otuatail]

I have a form Method="post"

I have two images of buttons

<input type="image" name="Topic" Value="4" src="images/new_topic2.gif" alt="" border="0">

<input type="image" name="Prefs" Value="6" src="images/Prefs2.gif" alt="" border="0">

 

I need to find out which image is clicked to take diffrent actions. I have tried.

 

echo $_POST['Topic'];

 

Is there a way. I dont want to use  <input type="submit">

[cooldude832]

do print_r($_POST) and see if its in that array, otherwise you will have to derive a different way to pass the value, maybe updating a hidden input on click or something

[otuatail]

I am not sure what is going with

print_r($_POST) but I get difrent results depending on which image I click

 

Board [Prefs_x] => 28 [Prefs_y] => 12

Board [Topic_x] => 26 [Topic_y] => 12

 

This means that I Should be able to sort this.

[cooldude832]

well I dont see the button value carrying over so you will need to try a dual submit maybe

[otuatail]

Correct but if it knows the co-ordinats of the position of the mouse, could I not find out something like

 

if([Prefs_x] > 0)

......

if([Topic_x] >0)

....

 

There sdeems someway out of this.

 

[cooldude832]

na you need to use js

<input type="hidden" name="Button_Click" value="" />

<input type="button" onclick="submit_newtopic()" />

 

then make a newTopic() function in js to update the hdiden value and then submit the form

 

[PFMaBiSmAd]

Read this for what is happening and how to use the data in php - http://us3.php.net/manual/en/faq.html.php#faq.html.form-image

 

Your code should use isset(...) instead of checking for greater than zero, mainly because isset() won't produce an error when the variable is not set and fill up your web server log and slow your page down.