Test: foreach reference writing

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Result: Discarded

The test labeled "non-referenced" was the faster by 0.0014 seconds, (0.164% faster)

non-referenced 100%

referenced 99.836%

The non-referenced test took 0.8803 seconds.
The referenced test took 0.8818 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 229,919 loops for a total of 4,598,380 runs.

Line execution difference (0.000000) milliseconds.
Avg difference (0.072) milliseconds per 229,919 loops.
Total difference 1.44 milliseconds for 4,598,380 loops

The iteration variablity for Code 1 was (1.1244) milliseconds and Code 2 was (0.6469) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

The first test, "non-referenced", was:

foreach ($GLOBALS['dummy'] as $k => $v)
	$v[0]++;
unset($v);

The second test, "referenced", was:

foreach ($GLOBALS['dummy'] as $k => &$v)
	$v[0]++;
unset($v);

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