Test: substr on short vs. long strings

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Result: Discarded

The test labeled "short" was the faster by 0.2318 seconds, (19.591% faster)

short 100%

long (x200) 80.409%

The short test took 0.9515 seconds.
The long (x200) test took 1.1833 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 234,318 loops for a total of 4,686,360 runs.

Line execution difference (0.000049) milliseconds.
Avg difference (11.591) milliseconds per 234,318 loops.
Total difference 231.83 milliseconds for 4,686,360 loops

The iteration variablity for Code 1 was (4.5572) milliseconds and Code 2 was (8.5056) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

The first test, "short", was:

for ($j = 0; $j < 100; $j++)
	$GLOBALS['dummy2'] = substr($GLOBALS['dummy_short'], 10, 10);

The second test, "long (x200)", was:

for ($j = 0; $j < 100; $j++)
	$GLOBALS['dummy2'] = substr($GLOBALS['dummy_long'], 10, 10);

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