Result: SavedThe test labeled "referenced" was the faster by 0.0232 seconds, (3.529% faster)
The referenced test took 0.6335 seconds.
The non-referenced test took 0.6567 seconds.
Each test case ran 20 random code order iterations consisting of 151,050 loops for a total of 3,021,000 runs.
- Line execution difference (0.000008) milliseconds.
- Avg difference (1.159) milliseconds per 151,050 loops.
- Total difference 23.17 milliseconds for 3,021,000 loops
The iteration variablity for Code 1 was (4.3588) milliseconds and Code 2 was (4.4109) 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);