Result: DiscardedThe test labeled "referenced" was the faster by 0.0044 seconds, (0.913% faster)
The referenced test took 0.4814 seconds.
The non-referenced test took 0.4858 seconds.
Each test case ran 20 random code order iterations consisting of 136,600 loops for a total of 2,732,000 runs.
- Line execution difference (0.000002) milliseconds.
- Avg difference (0.222) milliseconds per 136,600 loops.
- Total difference 4.44 milliseconds for 2,732,000 loops
The iteration variablity for Code 1 was (1.0824) milliseconds and Code 2 was (0.3958) 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) $v++; unset($v);
The second test, "referenced", was:
foreach ($GLOBALS['dummy'] as $k => &$v) $v++; unset($v);