Result: SavedThe test labeled "non-referenced" was the faster by 0.0213 seconds, (2.696% faster)
The non-referenced test took 0.7694 seconds.
The referenced test took 0.7907 seconds.
Each test case ran 20 random code order iterations consisting of 177,837 loops for a total of 3,556,740 runs.
- Line execution difference (0.000006) milliseconds.
- Avg difference (1.066) milliseconds per 177,837 loops.
- Total difference 21.32 milliseconds for 3,556,740 loops
The iteration variablity for Code 1 was (5.2580) milliseconds and Code 2 was (5.3015) milliseconds. The lower and the closer together there values are the more accurate the results are.
The first test, "non-referenced", was:
foreach ($GLOBALS['dummy'] as $k => $v) $v + 1; unset($v);
The second test, "referenced", was:
foreach ($GLOBALS['dummy'] as $k => &$v) $v + 1; unset($v);