PHP list+explode VS substr+strpos - what is more efficient?

Question

Sample text:

$text = \'Administration\\Controller\\UserController::Save\';

Task - extract everything before ::

Option 1:

Answer 1

Using the time command on Linux. The first one measured in at 0m0.024s and the second at 0m0.011s.

The second one appears to be faster. I ran it multiple times and the result (bar one time) seemed to be the same.

EDIT: As suggested, the other user said to run it in a loop of 5000. That completed with the same results.