Test: foreach vs. for

Note that this isn't helpful unless you have ascending int keys.

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Result: Discarded

The test labeled "for" was the faster by 0.0005 seconds, (0.047% faster)

for 100%

foreach 99.953%

The for test took 1.0279 seconds.
The foreach test took 1.0284 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 289,962 loops for a total of 5,799,240 runs.

Line execution difference (0.000000) milliseconds.
Avg difference (0.024) milliseconds per 289,962 loops.
Total difference 0.48 milliseconds for 5,799,240 loops

The iteration variablity for Code 1 was (1.3997) milliseconds and Code 2 was (0.7200) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

The first test, "foreach", was:

foreach ($GLOBALS['dummy'] as $v)
	$v[0] + 1;

The second test, "for", was:

for ($k = 0, $n = count($GLOBALS['dummy']); $k < $n; $k++)
	$GLOBALS['dummy'][$k][0] + 1;

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