Compare two version strings

Hi everyone,

I have to walk an array filled with version numbers and I have to find the highest one.
For example I could have

[0] => "1.0.1.4"
[1] => "1.2.0.12"
[2] => "5.0.85"
[3] => "4.6.3.23"

Using the example before, the highest one should be number 2 (5.0.85).
Is there anything like PHP version_compare function?

Thanks in advance!