| Re: Using count() as an array index [message #178442 is a reply to message #178440] |
Mon, 18 June 2012 17:38   |
Jerry Stuckle
Messages: 2598
Registered: September 2010
Karma:
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Senior Member |
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On 6/18/2012 10:46 AM, Martin Leese wrote:
> Jerry Stuckle wrote:
>> On 6/17/2012 9:57 AM, Martin Leese wrote:
>>> Jerry Stuckle wrote:
>>> ...
>>>> Be aware, though - the typical array in PHP starts counting at 0, not
>>>> 1. So an array of 3 elements would be numbered 0, 1 and 2. In this
>>>> case, an element with an index of 3 (count($anArray)) is not set (and
>>>> will give a warning if you try to use it).
>>>>
>>>> You need to get used to this idea; it's used throughout PHP.
>>>
>>> The test code I posted was taken from my
>>> application in which I deliberately start my
>>> array with [1]. This is because the array
>>> holds numbered sections of an FAQ, and it
>>> makes more sense to have Section 1 in array
>>> element [1], etc.
>>
>> Actually, I think it's a bad way to do things. What happens if you
>> want to add a new section - or delete one? You'll have to change your
>> code, which should never be the case.
>>
>> A better way is to hold the information in a database.
>
> No, I will not need to change my code. I
> am using an array as a replacement for a
> database. Here is a snippet of my file
> faqData.php to give you the idea:
>
> // Set data to identify Web page, and set prev and next anchors
> // Note that the first set must have index explicitly set to [1]
> $tempIndex = 1;
> $dataHref[$tempIndex] = "Ambisonic/faq_section01.html";
> $dataAnchorText[$tempIndex] = "1. Where can I get this FAQ?";
> $dataCompleteText[$tempIndex] = "1. <a href=\"#SECTION1\">Where can I
> get this FAQ?</a>";
> $dataSplitText[$tempIndex] = "1. <a rel=\"section\"
> href=\"$dataHref[$tempIndex]\">Where can I get this FAQ?</a>";
>
> $tempIndex++;
> $dataHref[$tempIndex] = "Ambisonic/faq_section02.html";
> $dataAnchorText[$tempIndex] = "2. Corrections to the FAQ";
> $dataCompleteText[$tempIndex] = "2. <a href=\"#SECTION2\">Corrections to
> the FAQ</a>";
> $dataSplitText[$tempIndex] = "2. <a rel=\"section\"
> href=\"$dataHref[$tempIndex]\">Corrections to the FAQ</a>";
>
Yes, which means if you need to change your FAQs you need to change this
code.
--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex(at)attglobal(dot)net
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