Test: define constants vs. variables

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Result: Discarded

The test labeled "constants" was the faster by 0.0141 seconds, (2.262% faster)

constants 100%

variables 97.738%

The constants test took 0.6088 seconds.
The variables test took 0.6229 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 156,256 loops for a total of 3,125,120 runs.

Line execution difference (0.000005) milliseconds.
Avg difference (0.704) milliseconds per 156,256 loops.
Total difference 14.09 milliseconds for 3,125,120 loops

The iteration variablity for Code 1 was (2.7568) milliseconds and Code 2 was (3.1045) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

The first test, "constants", was:

define('CONSTANT' . $GLOBALS['i'], $GLOBALS['x'] . $GLOBALS['y'] . $GLOBALS['z']);
$GLOBALS['i']++;

The second test, "variables", was:

$GLOBALS['CONSTANT' . $GLOBALS['i']] = $GLOBALS['x'] . $GLOBALS['y'] . $GLOBALS['z'];
$GLOBALS['i']++;

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