Test: defined vs. isset
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View test history (3) Run this test again Return to test menuResult: Discarded
The test labeled "isset()" was the faster by 0.0017 seconds, (0.164% faster)
The isset() test took 1.0176 seconds.
The defined() test took 1.0193 seconds.
Nitty-Gritty
Each test case ran 20 random code order iterations consisting of 237,974 loops for a total of 4,759,480 runs.
- Line execution difference (0.000000) milliseconds.
- Avg difference (0.084) milliseconds per 237,974 loops.
- Total difference 1.68 milliseconds for 4,759,480 loops
The iteration variablity for Code 1 was (3.2153) milliseconds and Code 2 was (3.9942) 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']);