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php menu in loop

Posted on 2011-02-23
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Last Modified: 2012-06-27
hello,

I am having a problem with a dropdown menu in php, the menu works fine, it displays everything as it should, but it will not pass down any values. the reason there is a $i next to it is because the number of menus must be the same as the counter in the loop, and each menu must have its own name obviously, so I opted for 'firstname$i' where the first menu would be seen as firstname0, 2nd being firstname1 etc....  the [] are there because tjhe user must be able to select multiple options from the menu.

the code section is:

<?

?>

<FORM method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
<?


$i = 0;
while ( $i <= 5 ) {

//echo"Firstname: <input type='text' name='firstname$i'[] />";


echo"<select name= 'firstname[$i]'[] size=4 multiple>
  <option>Milk</option>
  <option>Coffee</option>
  <option>Tea</option>
</select>";

$i++;

}

?>

</Select>
<input type=Submit value=pass on>
</form>

<?


$var2 = $_POST['firstname0'];



print_r($var2);
?>

please can someone show me where it is that I am going wrong.

thanks, Gavin
0
Comment
Question by:GPB1983
  • 5
  • 5
10 Comments
 
LVL 34

Accepted Solution

by:
Beverley Portlock earned 2000 total points
ID: 34959916
In this line

echo"<select name= 'firstname[$i]'[] size=4 multiple>

Move the quote between the ] [

echo"<select name= 'firstname[$i][]' size=4 multiple>
0
 

Author Comment

by:GPB1983
ID: 34960014
hiya,

thanks for the quick reply, but I have already tried that on another example, the code compiles fine, but doesnt work. it doesnt pass anything.

the url for it is:
http://www.gavinbuczko.co.uk/phplooptrial.php

regards, Gavin
0
 
LVL 34

Expert Comment

by:Beverley Portlock
ID: 34960133
Works for me.....

_POST["firstname"]      

Array
(
    [0] => Array
        (
            [0] => milk
            [1] => coffee
            [2] => tea
        )

    [2] => Array
        (
            [0] => milk
            [1] => coffee
        )

    [4] => Array
        (
            [0] => milk
            [1] => tea
        )

    [5] => Array
        (
            [0] => coffee
            [1] => tea
        )

)
0
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Author Comment

by:GPB1983
ID: 34960208
hi thanks, yes it does, but what I need it to do is if i choose stuff from menu one then it prints that, if i select stuff from menu 2 then print that, at the moment it prints everything out.

regards, Gavin
0
 
LVL 34

Expert Comment

by:Beverley Portlock
ID: 34960248
No - it only prints what is selected. If you look at the above you will see that the array indexes are 0, 2, 3, 4 and 5. Index number 1 is missing because I did not select anything on that menu.

Perhaps I'm missing the point?
0
 
LVL 34

Expert Comment

by:Beverley Portlock
ID: 34960251
Actually index 3 is missing as well.
0
 

Author Comment

by:GPB1983
ID: 34960295
Hi, sorry I mis understood, but you are right.
what I was trying to do was to get the contents of menu 0 into

$var2 = $_POST['firstname0'];
$var3 = $_POST['firstname1'];

etc..

sorry I should have explained better.

regards, Gavin
0
 
LVL 34

Assisted Solution

by:Beverley Portlock
Beverley Portlock earned 2000 total points
ID: 34960420
Something like this will pick out the data

<?php
if (isset( $_POST['firstname'] ) ) {
     $data = $_POST['firstname'];
     

     foreach( $data as $index => $aGroup ) {
          echo "Group number $index selected ";

          foreach( $aGroup as $aValue )
               echo "$aValue ";

          echo "<br/>";

     }
}

Open in new window


It could be modified to store the data easily enough
0
 

Author Comment

by:GPB1983
ID: 34961739
thanks mate, I really appreciate all the help, and the detailed explanation! top marks allround mate! thanks,
regards,
Gavin
0
 

Author Closing Comment

by:GPB1983
ID: 34961749
top quality explanations!
0

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