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 0.0266 seconds, (2.235% faster)

for 100%

foreach 97.765%

The for test took 1.163 seconds.
The foreach test took 1.1895 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 282,112 loops for a total of 5,642,240 runs.

Line execution difference (0.000005) milliseconds.
Avg difference (1.329) milliseconds per 282,112 loops.
Total difference 26.59 milliseconds for 5,642,240 loops

The iteration variablity for Code 1 was (6.0224) milliseconds and Code 2 was (4.6007) 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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