如下：
<code>brew install php56-xhprof ==> Installing php56-xhprof from homebrew/homebrew-php ==> Downloading https://github.com/facebook/xhprof/archive/254eb24dcfa763c76c57b472093ebc4b81af2b7d.tar.gz ######################################################################## 100.0% ==> Patching Error: Unable to guess PHP branch for Formulary::Formulae::Php56Xhprof </code>
如下：
<code>brew install php56-xhprof ==> Installing php56-xhprof from homebrew/homebrew-php ==> Downloading https://github.com/facebook/xhprof/archive/254eb24dcfa763c76c57b472093ebc4b81af2b7d.tar.gz ######################################################################## 100.0% ==> Patching Error: Unable to guess PHP branch for Formulary::Formulae::Php56Xhprof </code>
应该是PHP版本有问题，homebrew-php的源码,你尝试安装一下5.3+的版本。
<code>def php_branch
class_name = self.class.name.split("::").last
matches = /^Php5([3-9]+)/.match(class_name)
if matches
"5." + matches[1]
else
raise "Unable to guess PHP branch for #{class_name}"
end
end
</code>
