Historical ResultsBased on (2) saved test runs, The test labeled "function_exists()" was (on average) the faster by 0.0036 seconds, (0.436% faster)
The function_exists() test took 0.8326 seconds.
The include_once test took 0.8362 seconds.
Each test case ran 20 random code order iterations consisting of 206,388 loops for a total of 4,127,750 runs.
- Line execution difference (0.000001) milliseconds.
- Avg difference (0.000) milliseconds per 206,388 loops.
- Total difference 3.65 milliseconds for 4,127,750 loops
The iteration variablity for Code 1 was (0.0000) milliseconds and Code 2 was (0.0000) milliseconds. The lower and the closer together there values are the more accurate the results are.
The first test, "include_once", was:
The second test, "function_exists()", was:
clearstatcache(); if (!function_exists('f2')) include('supplement/func2.inc');