Readiness Check does not check for MCrypt Extension

[Viveur]

Current Behaviour

During Stage 1 of install I see:

PHP Extensions Check You meet 2 out of 2 PHP extensions requirements. [Less detail] PHP Extension ctype. PHP Extension gd.

However at Stage 6 install fails with:

[ERROR] exception 'Exception' with message 'exception 'Exception' with message 'Module 'Magento_Core' depends on 'mcrypt' PHP extension that is not loaded.' in /Users/[name]/Documents/WWW/magento2/lib/internal/Magento/Framework/Module/DependencyManager.php:56

Suggested Behaviour

Readiness Check should test for whether the PHP Extension MCrypt is loaded as this is a required extension.

[maksek]

Hi @bit32, seems like you have 2 php instances on your server, one of them has mcrypt (the one apache uses), and another one doesn't have it.
I will close the issue, due duplication with #714

[Viveur]

I actually opened this a separate issue as it's not dependent on this issue described in #714 and is generally applicable to any PHP installation.

I know that the Magento 1 installer definitely checks for MCrypt as part of it's install process

I think people may find it confusing to have a situation where they passed a test for PHP Extensions one minute and then encounter an error (that occurs due to a missing PHP Extension) the next.

[maksek]

@bit32, actually root cause of the issue, is the same as in #714, thats why i closed this one with reference.

[Viveur]

Massively confused. Surely if anything this is the root cause of #714 and not the other way around?!

[maksek]

@bit32 if you follow installation process, all steps except 6th, are handled by PHP+Apache. Basically Magento setup wizard is using php which configured with apache.
On last step - there is exec code for console run for reindex, which will use your default php installation, returned by this code \Symfony\Component\Process\PhpExecutableFinder::find(). Which in your case is separate instance of php, and doesn't have all extensions installed.
Let me know if resolve your confusion. :)