Prerelease versions of PHP are not compatible about grunt-php

[sindresorhus]

What PHP version are you using? php -v

[brodkin]

5.6.0 beta 1, but look how it's formatted:

PHP 5.6.0beta1 (cli) (built: Aug 30 2014 13:52:33) 
Copyright (c) 1997-2014 The PHP Group
Zend Engine v2.6.0-dev, Copyright (c) 1998-2014 Zend Technologies
    with Xdebug v2.2.4, Copyright (c) 2002-2014, by Derick Rethans

It would seem that the PHP folks are not following SemVer since that doesn't comply with rule 9.

I just re-read the error thrown in Grunt and it says:

Warning: /usr/local/opt/php56/bin/php 2.6.0-dev does not satisfy the version requirement of >=5.4 Use --force to continue.

It's reading the version of Zend, not PHP.

For the record adding the --force flag does nothing useful.

[sindresorhus]

It supports non-valid semver, but it didn't order the results correctly and hence matched the wrong version.

Just reinstall this task to have it fixed ;)