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 "foreach" was the faster by 0.0206 seconds, (3.887% faster)

foreach 100%

for 96.113%

The foreach test took 0.5084 seconds.
The for test took 0.529 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 140,383 loops for a total of 2,807,660 runs.

Line execution difference (0.000007) milliseconds.
Avg difference (1.028) milliseconds per 140,383 loops.
Total difference 20.56 milliseconds for 2,807,660 loops

The iteration variablity for Code 1 was (0.5063) milliseconds and Code 2 was (1.1330) 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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