Result: Discarded
The test labeled "isset()" was the faster by 0.1778 seconds, (13.870% faster)
The isset() test took 1.1041 seconds.
The defined() test took 1.2819 seconds.
Nitty-Gritty
Each test case ran 20 random code order iterations consisting of 289,162 loops for a total of 5,783,240 runs.
- Line execution difference (0.000031) milliseconds.
- Avg difference (8.890) milliseconds per 289,162 loops.
- Total difference 177.80 milliseconds for 5,783,240 loops
The iteration variablity for Code 1 was (10.5314) milliseconds and Code 2 was (2.5974) milliseconds. The lower and the closer together there values are the more accurate the results are.
Code
The first test, "defined()", was:
$GLOBALS['test'] = defined('CONSTANT');
The second test, "isset()", was:
$GLOBALS['test'] = isset($GLOBALS['CONSTANT']);