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problem with multiple submit buttons.. help me!!!!

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mk2lee1

mk2lee1

MIS
Jul 8, 2003
51
US
Hi, i have problem with my code.


In my page there are session variable;

session_start();
session_register("WFCounter");
session_register("TCounter");
session_register("EFactor");

Initially they are set to 0

if(!$WFCounter) $WFCounter=0;
if(!$TCounter) $TCounter=0;
if(!$EFactor) $EFactor=0;

Also, there are 3 submit buttons

<input type=&quot;submit&quot; name=&quot;submit1&quot; value=&quot;Update_UCCP&quot;>
<input type=&quot;submit&quot; name=&quot;submit2&quot; value=&quot;Update_Technical_Factor&quot;>
<input type=&quot;submit&quot; name=&quot;submit3&quot; value=&quot;Update_Environment_Factor&quot;>

And there is validation code that check for validity

if ($WFCounter != 0)
{
check validity for Weight Factor
}

if ($TCounter != 0)
{
check validity for Technical Factor
}

if ($EFactor != 0)
{
check validity for Environmental Factor
}

Initially this would not be checked..
However, if I press the button, let say Update_UCCP button, there is a code that check(page is reloaded into itself using $PHP_SELF) if it was checked, and increases the WFCounter

if(isset($HTTP_POST_VARS['$submit1']))

{
$WFCounter++; //increase the WFCounter
echo &quot;hi&quot;;
}

However, this code doesn't seems to work...

is there any problem with this code?

Please help me thankyou.
 
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$WFCounter only exists as long as the page is being displayed, if you move page (even just refreshing the current one) then all variables are reset and you ahev a clean slate. I would suggest writing a hidden form element that is then submitted so you can keep track of the previous value.
 
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why three buttons? Does not seem logical to me but I may be wrong, I am not sure what you are trying to do other than increment a var by 1. I may be wrong here because I cannot see just what you are trying to achieve but could you not have one button and some option/radio buttons so that the user can only pick one then use a single submit button and simply check which radio/option button was clicked. Also you check to see which button has been pressed, not entirely sure you can do this but I am going to check now. Ok I have found your error try this
Code: 
print “the value of the button pressed is $HTTP_POST_VARS[submit1]”;
but i only had one button sorry should have tryed with 2

in the form tag i had
<form method=&quot;POST&quot;>
see how you go on with this.

To err is human, to completely mess up takes a computer. [morning]
 
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ok tryied with 2 buttons
<input type=&quot;submit&quot; name=&quot;submit&quot; value=&quot;Log In!&quot;> and
<input type=&quot;submit&quot; name=&quot;submit1&quot; value=&quot;Log out!&quot;>
but i could only get a the value of the last button &quot;log out!&quot;
so i think i may have been correct on the buttons.

To err is human, to completely mess up takes a computer. [morning]
 
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csniffer:
Using the follwing HTML:

Code: 
<html><body><form action=&quot;/test_code/test_two_submits.php&quot; method=&quot;post&quot;>
<input type=text name=&quot;foo&quot;>
<input type=submit name=&quot;bar1&quot; value=&quot;submit1&quot;>
<input type=submit name=&quot;bar2&quot; value=&quot;submit2&quot;>
</form></body></html>

If I enter a value of &quot;a&quot; in the text input and then click on bar1, $_POST contains:

Code: 
Array
(
   [foo] => a
   [bar1] => submit1
)

When I click on bar2, $_POST contains:

Code: 
Array
(
   [foo] => a
   [bar2] => submit2
)

This works with Opera, IE, Mozilla, and Netscape.

What browswer are you testing with?

Want the best answers? Ask the best questions: TANSTAAFL!!
 
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Hi sorry it has taken me so long to get back, although tek-tips said that some messages had been posted, I could not view them.

That’s interesting, I am using IE but it may be how I was addressing the problem. I am going to try this again as I didn’t even get the name only the value of the input tag. But I am relatively new to php. To be honest I just printed the value and didn’t realise that I could view both values. I will have to have a play with these global vars. Thx for pointing that out. I carnt see from the code how u picked up the $_POST into an array could you please explain


To err is human, to completely mess up takes a computer. [morning]
 
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