Result: Discarded
The test labeled "defined()" was the faster by 0.0152 seconds, (1.379% faster)
The defined() test took 1.0904 seconds.
The isset() test took 1.1056 seconds.
Nitty-Gritty
Each test case ran 20 random code order iterations consisting of 224,084 loops for a total of 4,481,680 runs.
- Line execution difference (0.000003) milliseconds.
- Avg difference (0.762) milliseconds per 224,084 loops.
- Total difference 15.25 milliseconds for 4,481,680 loops
The iteration variablity for Code 1 was (10.9213) milliseconds and Code 2 was (13.0490) 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']);