On 1/24/2021 2:13 AM, Benedikt Carda wrote:
Hello,
I am new to this list and don't feel (due to my non-existant C skills)
to belong here, but I need a PECL package that is unmaintained and
therefore not available for PHP 7: https://pecl.php.net/package/pcsc
I tried to compile it and it throws some errors where I feel somewhat
confident that I can solve them. It seems like basic syntax changes.
E.g. I found out that I had to replace |zend_rsrc_list_entry ||by
|||zend_resource ||(following this blog post:
http://www.sklar.com/software/php/2015/03/23/converting-a-php-extension-to-php-7/).
But there are other errors like "error: expected expression before" when
calling ZEND_FETCH_RESOURCE or "error: macro "RETVAL_STRING" passed 2
arguments, but takes just 1".
Seem to me like very basic things to solve, but I can't find any
reference / manual where I can find the usage of these functions and
which parameters the function expects. Can anybody give me some hints
where to search for this information? Maybe there is also a migration
guide for PHP extensions from PHP 5 to PHP 7 somewhere.
Best Regards,
Benedikt.
My recommendation is to search the 'ext' directory of the PHP source
code. It's a good place to find current, working examples. The
majority of PHP is actually a series of extensions.
You can also look at PECL extensions that have been around for a while.
I maintain PECL sync, which has #ifdef macros that allow it to compile
for both PHP 5 and 7 (not that PHP 5 support is relevant anymore). I
think PECL sync is a pretty good example since it is a fairly short,
easily understood, real-world extension with no additional dependencies.
--
Thomas Hruska
CubicleSoft President
CubicleSoft has over 80 original open source projects and counting.
Plus a couple of commercial/retail products.
What software are you looking to build?
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