Test: define constants vs. variables

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Result: Discarded

The test labeled "variables" was the faster by 0.0168 seconds, (2.604% faster)

variables 100%

constants 97.396%

The variables test took 0.6292 seconds.
The constants test took 0.6461 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 135,442 loops for a total of 2,708,840 runs.

Line execution difference (0.000006) milliseconds.
Avg difference (0.841) milliseconds per 135,442 loops.
Total difference 16.82 milliseconds for 2,708,840 loops

The iteration variablity for Code 1 was (7.0095) milliseconds and Code 2 was (6.6462) 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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