Problem extracting data from form

[Hamayun Khan]

Hi

I m using form like below
[HTML]<form action='' method = post>
<input type=text name=txt id=txt>
<select name=region id=region multiple>
<option value=1>ONE</option>
<option value=2>Two</option>
<option value=3>Three</option>
<option value=4>Four</option>
</select>
<input type=checkbox name=chkbox value=1>One
<input type=checkbox name=chkbox value=2>Two
<input type=checkbox name=chkbox value=3>Three
<input type=checkbox name=chkbox value=4>Four
<input type=submit name=summit value=Enter>
</form>[/HTML]
and I use the following code to get the values
[PHP]
echo "Text Field value = ". $_POST['txt'] . "<br>";
echo "Select Field values=".$_POST['region']. "<br>";
echo "Checkbox Field values=".$_POST['chkbox']. "<br>";
[/PHP]
Let I enter Hello in Text field, select One and Two from select field and Check Three and Four Check Boxes then the above PHP code show the following results

Text Field value=Hello
Select Field values=2
Checkbox Field values=4

where as I expect the follwoing

Text Field value=Hello
Select Field values=1,2
Checkbox Field values=3,4

Looking forword for Help
Thanks in advance

[Markus]

When you give something a value you need to use quotations

option value="1"
 

Could you do a print_r($_POST) on the page that receives the submitted values and show us the output.

You shouldnt be able access $_POST['chxbox'] by simply doing that, because it should be a multidimensional array, as you have given all checkboxes the same name.

[hsriat]

When you are submitting variables with same name, you got to submit them as array.

Use this instead...
[HTML]<form action='' method = post>
<input type=text name=txt id=txt>
<select name="region[]" id=region multiple>
<option value=1>ONE</option>
<option value=2>Two</option>
<option value=3>Three</option>
<option value=4>Four</option>
</select>
<input type=checkbox name="chkbox[]" value=1>One
<input type=checkbox name="chkbox[]" value=2>Two
<input type=checkbox name="chkbox[]" value=3>Three
<input type=checkbox name="chkbox[]" value=4>Four
<input type=submit name=summit value=Enter>
</form>[/HTML]
On the action page, write
[php]echo "<pre>";
print_r($_POST)
echo "</pre>";[/php] in the start and you can come to know how to manipulate the submitted data according to your requirement.

Regards,
Harpreet

PS: Keeping values of attributes in quotes is really important for a proper mark-up, as markus said.

[Hamayun Khan]

Thanks for replying to All.

First Thing I don't want to print the values. This was just an example. If I want to save the values into database. If i set the the the method attribute of the form to get then I see the following URL

page.php?txt=Hello&region=1&region=2&chkbox=3&chkb ox=4

I seems not an array.

Second I also I also tried the following

[PHP]

echo $_POST['region'];
echo $_POST['region'][0];
echo $_POST['region'][1];
[/PHP]

Here the first and 2nd statements print same values while the 3rd statement doesn't print any thing. ( Assume that I select one and Two form List).

Third In ASP Every thing is OK.


response.write(request.querystring("region"))

this prints

1,2 And I need the same from PHP.

Please some more help

[hsriat]

I didn't force you to print the values. It was just so that you could understand in what form is the data received by PHP, as this is not ASP (but far better than ASP)

and I think you didn't try what I said...

<select name="region[ ]" id=region multiple>

And last of all, use method="post" instead of get.

Read the last post carefully and try what I said. That may help you.

[rpnew]

Hi,
All the above posts asked you to do this....

<form action='test.php' method = post>
 
              <input type=text name=txt id=txt>
 
              <select name=region[] id=region multiple>
 
                  <option value=1>ONE</option>
 
                  <option value=2>Two</option>
 
                  <option value=3>Three</option>
 
                  <option value=4>Four</option>
 
              </select>
 
              <input type=checkbox name=chkbox[] value=1>One
 
              <input type=checkbox name=chkbox[] value=2>Two
 
              <input type=checkbox name=chkbox[] value=3>Three
 
              <input type=checkbox name=chkbox[] value=4>Four
 
              <input type=submit name=summit value=Enter>
 
          </form>
 

To get the exact output you wanted i manipulated your PHP script a bit like this...

    echo "Text Field value = ". $_POST['txt'] . "<br>";
    echo "Select Field values=".implode(",",$_POST['region']). "<br>";
     echo "Checkbox Field values=".implode(",",$_POST['chkbox']). "<br>";
 

Implode will convert your array into string... and for reverse you can use Explode . To directly access array posted you can use foreach loop.

Regards,
RP

[Hamayun Khan]

I didn't force you to print the values. It was just so that you could understand in what form is the data received by PHP, as this is not ASP (but far better than ASP)

and I think you didn't try what I said...

<select name="region[ ]" id=region multiple>

And last of all, use method="post" instead of get.

Read the last post carefully and try what I said. That may help you.

Thanks for helping

<select name="region[ ]" id=region multiple>

I really forget to place [] braces after the name.

Thanks once again

[hsriat]

You are welcome :)

[Markus]

I read somewhere that assigning the same name to an element automatically turned it into an array (no need for []).

Hm, I must've read incorrectly.

This post could've been resolved in your first reply, hs. If only people would listen :P

[hsriat]

Not in PHP.... might be in ASP.

Try this... [php]//show_post.php
if (!isset($_POST['submit']))
{
echo "<from action=\"show_post.php\" method=\"post\">";
for ($i=0; $i<10; $i++)
echo "<input type=\"text\" name=\"markus\">";
//For the second time, use markus[] instead of markus
echo "<input type=\"submit\" name=\"submit\" value=\"Let's test\"></form>";
}
else
{
echo "<pre>";
print_r($_POST);
echo "</pre>";
}
?>[/php]
Elaboration ;)

... yeh... you are right... just in first reply..