Test: substr on short vs. long strings

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Result: Discarded

The test labeled "long (x200)" was the faster by 0.0032 seconds, (0.620% faster)

long (x200) 100%

short 99.38%

The long (x200) test took 0.5191 seconds.
The short test took 0.5223 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 143,985 loops for a total of 2,879,700 runs.

Line execution difference (0.000001) milliseconds.
Avg difference (0.162) milliseconds per 143,985 loops.
Total difference 3.24 milliseconds for 2,879,700 loops

The iteration variablity for Code 1 was (1.5462) milliseconds and Code 2 was (0.7810) 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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