[FX.php List] Suggestions on editing a list of check boxes

[Chris Hansen]

John,

Bob is right about checkbox naming (if you're not careful, you'll end  
up with only that last value in the list), but there's a very elegant  
way to handle this: name your checkbox element with empty square  
brackets.

<input type='checkbox' name='my_checkbox[]' value='some_value' />

What this does, is cause PHP to automagically assemble all checkbox  
values for a given set into an array.  Neat, eh?  Just be sure to  
check that values were submitted before stepping through that PHP  
array with foreach() or you'll get an error.

HTH

--Chris Hansen
   FileMaker 7/8/9 Certified Developer
   Creator of FX.php
   "The best way from FileMaker to the Web."
   www.iViking.org

On Sep 1, 2008, at 11:24 AM, Bob Patin wrote:

> Hi John,
>
> I thought we talked about this the other day...
>
> I have my own method, which works great; I'm sure there are other  
> methods, but this one is fairly easy:
>
> On your form:
>
> If you are creating a dynamic set of checkboxes, you'll need to make  
> sure each checkbox's name is unique. I do this with a counter:
>
> $counter = 0;
>
> Then, in a FOREACH loop, generate your checkbox HTML code, and make  
> the name end with the counter variable:
>
> name="myCheckbox_<?php echo $counter; ?>"
>
> I use an underscore just to make it easy for me to read...
>
> Then, after this FOREACH loop, put an invisible field that contains  
> the value of $counter; you'll use this on the processing page.
> ---------------
> ON THE PROCESSING PAGE:
>
> //retrieve the value of your COUNTER variable
> $counter = $_POST['counter'];
>
> Retrieve the checkbox values by using a WHILE loop:
>
> $x = 0;
> while ($x < $counter){
> 	$myCheckboxList = $_POST['myCheckbox_'.$x].'<br>';
> 	$x++;
> }
>
> Then, in your EDIT query, write the value of $myCheckboxList to your  
> checkbox field.
>
> I'm doing this all from memory, but that's essentially how I do it.  
> You don't really need to use an array, since you're grabbing the  
> checkbox values and assembling them into a list that you'll write to  
> the field.
>
> Hope this makes sense; I'm too lazy to dig up one of my pages and  
> copy out the code...
>
>
> --
> Bob Patin
> Longterm Solutions
> bob at longtermsolutions.com
> 615-333-6858
> http://www.longtermsolutions.com
> iChat: bobpatin
> AIM: longterm1954
> FileMaker 9 Certified Developer
> Member of FileMaker Business Alliance and FileMaker TechNet
> --------------------------
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>
>
> On Sep 1, 2008, at 10:52 AM, John Funk wrote:
>
>> I have HTML form that list the results of an FM query in a check  
>> box format.
>> I would like to then send that list (all (records with user  
>> changes) back to
>> the same FM layout (table) with FMEdit().
>> Can anybody give an example for capturing, sending and getting  
>> arrays of
>> data between php files, then parsing to edit the records? I  
>> understand the
>> FMEdit() part.
>>
>> My form part to show to check list:
>> $RecID=$record['RecordID'][0];
>> $Category=$record['Category'][0];
>> $YrSelected=$record[' YrSelected'][0];
>>
>> echo "<input name=RecID type=hidden value=".$RecID.">";
>> echo "<input name=YrSelected type=checkbox value=".$YrSelected;
>>
>> if ($YrSelected >"")
>>
>> echo " checked>".$Category."<br>";
>> else
>> echo " unchecked>".$Category."<br>";
>>
>>
>> This seems so simple but the more I work on it the more I get  
>> screwed up.
>> Thanks
>> John Funk
>>
>>
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