Historical Results
Based on (5) saved test runs, The test labeled "clean code" was (on average) the faster by 0.0008 seconds, (0.091% faster)
The clean code test took 0.8483 seconds.
The notices test took 0.8491 seconds.
Nitty-Gritty
Each test case ran 20 random code order iterations consisting of 197,352 loops for a total of 3,947,036 runs.
- Line execution difference (0.000000) milliseconds.
- Avg difference (0.000) milliseconds per 197,352 loops.
- Total difference 0.78 milliseconds for 3,947,036 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.
Code
The first test, "notices", was:
for ($i = 0; $i < 100; $i++) @$GLOBALS[dummy]++;
The second test, "clean code", was:
for ($i = 0; $i < 100; $i++) $GLOBALS['dummy']++;