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Re: Variable variables? [message #182267 is a reply to message #182265]

Fri, 26 July 2013 19:39

Scott Johnson
Messages: 196
Registered: January 2012

Karma:

Senior Member

On 7/26/2013 3:56 AM, Jerry Stuckle wrote:
> On 7/25/2013 10:56 PM, Scott Johnson wrote:
>> I have a situation which I 'think' I need to use variable variables and
>> not sure how to go about it.
>>
>>
>> I have several <select multiple> elements on a search form with their
>> names created dynamically and the options created dynamically.
>>
>> $parent holds the name such as "Women", "Mens" etc..
>> $c_id holds category_id and is sent off as the 'value' of the option.
>>
>> This form is self calling and an array is created for the multiple
>> option selected.
>>
>> Women => array([0]=>20,[1]=>21,...)
>> Mens => array([0]=>32,[1]=>35,...)
>>
>> I am using in_array() to check returned posted values against an id.
>>
>> How do I reference that array by using the value of $parent.
>>
>> if $parent is 'Women' I need to reference the array 'Women'
>>
>> Here is a nutshell of the algorithm.
>>
>> foreach($parent_ary as $parent) {
>> echo "<select {$parent}[] multiple>";
>> foreach($category_ary as $c_id=>$category) {
>> if(in_array($c_id, array of posted value)) {
>> // Create select option
>> } else {
>> // Create regular option
>> }
>> }
>> echo "</select>";
>> }
>>
>> I hope this makes sense and yes I did RTM but could not transpose what
>> they where explaining to what I need to do.
>>
>> Thanks
>> Scotty
>
> I'm not sure why you think you need variable variables (another sucky
> idea on PHP's part, IMHO). Build your array with the field name as the
> key and the value as the data. Then you can access it as
>
> foreach ($array as $key=>$value)
>
> If each key contains multiple values, then $value is just another array.
>
> Just be sure to validate your incoming data. Such constructions are
> more susceptible to be hacked unless you're very careful.
>

Well I was thinking of variable variables because.....I ran out of ideas
and it seemed like a way to go? ;)

I will give what you suggest a go, seems like a simple enough approach.

Thanks
Scotty

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[Message index]

		Variable variables? By: Scott Johnson on Fri, 26 July 2013 02:56
		Re: Variable variables? By: Jerry Stuckle on Fri, 26 July 2013 10:56
		Re: Variable variables? By: Scott Johnson on Fri, 26 July 2013 19:39
		Re: Variable variables? By: Jerry Stuckle on Sat, 27 July 2013 13:48
		Re: Variable variables? By: Tim Streater on Sat, 27 July 2013 14:45
		Re: Variable variables? By: The Natural Philosoph on Sat, 27 July 2013 14:46
		Re: Variable variables? By: Tim Streater on Sat, 27 July 2013 14:53
		Re: Variable variables? By: Luuk on Fri, 26 July 2013 20:04
		Re: Variable variables? By: Scott Johnson on Sat, 27 July 2013 03:27
		Re: Variable variables? By: Christoph Michael Bec on Fri, 26 July 2013 20:17
		Re: Variable variables? By: Thomas 'PointedEars' on Sat, 27 July 2013 07:37

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