zend-opcache conflict

[pavarnos]

Hi. Thanks so much for ComposerRequireChecker. I spent the day with it on a medium sized project and it found quite a few things to fix. great tool!

One small problem:

if i specify

require: {
        "ext-zend-opcache": "*",
}

in my composer.json then composer update works as expected but i get an error Extension zend-opcache does not exist from require checker.

if i specify

require: {
        "ext-Zend Opcache": "*",
}

in composer.json, then composer update fails with The requested PHP extension ext-zend opcache should be required as ext-zend-opcache. but require checker is happy

[Ocramius]

@pavarnos possibly a mismatch between what composer thinks is ext-zend-opcache, versus what PHP-core calls the extension?

See

ComposerRequireChecker/src/ComposerRequireChecker/DefinedSymbolsLocator/LocateDefinedSymbolsFromExtensions.php

Line 20 in f9254bd

$extensionReflection = new \ReflectionExtension($extensionName);

[maglnet]

It seems that composer somehow creates a slug of the extension name before comparing.
We should find the part where composer modified the extension names and could implement this, too?

[pavarnos]

ah. yes. found it here
https://github.com/composer/composer/blob/master/src/Composer/Repository/PlatformRepository.php#L313