Re: [Phpwiki-talk] Re: [phpwiki-checkins] CVS: phpwiki INSTALL,1.15,1.16

[Lawrence A. <la...@us...>]

Carsten,

I think the pl versions were released as patches - pl stands for patch 
level.  Sometimes significant things happened in the patches.  I thing, for 
example, that "include_once " came out with 4.01pl2

Lawrence

At 00:31 27/02/2002, you wrote:

>Jeff,
>
>Very well put, I understand now and agree with your point, that PhpWiki 
>should generally strive to support a particular version of PHP and stick 
>with it, until in the future it might be agreed that a higher version of 
>PHP is needed.
>
>I have some questions for you and the group about how to proceed from here.
>..
>
>The INSTALL docs I can change back to:
>
>  PhpWiki requires a web server with PHP version 4.0.? or greater and a
>  database application.
>
>(Fill in the decided upon version number above) and change the version 
>number in the next line from 4.0.5 to:
>
>  (PhpWiki uses the array_search() function which is present only in PHP
>  version php-4.0.4pl1 or greater.)
>
>Up until now I hadn't been giving any consideration to which version of 
>PHP a function was available in, except perhaps
>that it is available in PHP 4.x.x. So far I only recall the one function I 
>added in, array_search(), which apparently is only available in 4.0.4pl1 ? 
>and Reini has given some handy substitute functions so this can easily be 
>changed to work with older versions of PHP.
>
>Whenever this situation arises in the future, should we put the workaround 
>functions somewhere globally accessible like stdlib? or start a new 
>library file only containing these functions? (and then call them if 
>!function_exists('funcname') ?)
>
> From browsing around the PHP web site a bit, I think I figured out that 
> php-4.0.4pl1 is a CVS version of PHP before the final release of 4.0.4. 
> The online documentation doesn't always list in which CVS version of PHP 
> a function was added, usually just the full release version number as is 
> the case with the example array_search(). (The docs for 
> call_user_func_array is one I found which *does* mention a pl version 
> number http://www.php.net/
>manual/en/html/function.call-user-func-array.html). At least I haven't 
>found any such online reference yet for which functions were added in any 
>pl version.
>
>When SF was running the older version of PHP it probably would have been 
>almost immediately evident when a new function was added which broke it. 
>So now that SF is running PHP/4.0.6 do we just wait until somebody 
>complains ;-) that a new function broke their PhpWiki running PHP-plxxx?
>
>I'm sure there are a lot of stable CVS variations of PHP different people 
>could be using, how to decide which version is PhpWiki going to support? 
>If it will help us, I am willing to to some "monkey" work, examine each 
>function currently used in PhpWiki then visit each function page in the 
>PHP docs to determine the necessary PHP version. Someone else with 
>experience using non-release "pl" builds would have to fill in the blanks 
>where the pl version is not available.
>
>Carsten