ccampbell/chromephp — pull request #44 by okonomiyaki3000 (2014-04-01 08:24:29+00:00)
Title: use PHP_VERSION and version_compare() where appropriate

We don't need to store `$_php_version` because there is already `PHP_VERSION`. `version_compare()` is the correct way to compare or test version numbers.

Also, I didn't remove it here, but `$_timestamp` seems to be unused. Do we actually need this value for any reason?