Test: ord v. unpack (str keys)

Does unpack (with its strange format string) go any faster than creating your own associative array?

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Result: Discarded

The test labeled "ord()" was the faster by 0.0039 seconds, (0.563% faster)

ord() 100%

unpack() 99.437%

The ord() test took 0.6815 seconds.
The unpack() test took 0.6854 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 156,416 loops for a total of 3,128,320 runs.

Line execution difference (0.000001) milliseconds.
Avg difference (0.193) milliseconds per 156,416 loops.
Total difference 3.86 milliseconds for 3,128,320 loops

The iteration variablity for Code 1 was (5.7760) milliseconds and Code 2 was (5.4248) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

The first test, "ord()", was:

$GLOBALS['dummy'] = array(
	'a' => ord($GLOBALS['packed']{0}),
	'b' => ord($GLOBALS['packed']{1}),
	'c' => ord($GLOBALS['packed']{2}),
	'd' => ord($GLOBALS['packed']{3}),
);

The second test, "unpack()", was:

$GLOBALS['dummy'] = unpack('Ca/Cb/Cc/Cd', $GLOBALS['packed']);

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