Result: Discarded
The test labeled "=== null" was the faster by 0.0458 seconds, (6.949% faster)
The === null test took 0.6127 seconds.
The == null test took 0.6585 seconds.
Nitty-Gritty
Each test case ran 20 random code order iterations consisting of 141,020 loops for a total of 2,820,400 runs.
- Line execution difference (0.000016) milliseconds.
- Avg difference (2.288) milliseconds per 141,020 loops.
- Total difference 45.75 milliseconds for 2,820,400 loops
The iteration variablity for Code 1 was (4.2397) milliseconds and Code 2 was (5.5019) milliseconds. The lower and the closer together there values are the more accurate the results are.
Code
The first test, "=== null", was:
for ($j = 0; $j < 100; $j++)
{
$GLOBALS['dummy3'] = $GLOBALS['dummy1'] === null;
$GLOBALS['dummy3'] += $GLOBALS['dummy2'] === null;
}
The second test, "== null", was:
for ($j = 0; $j < 100; $j++)
{
$GLOBALS['dummy3'] = $GLOBALS['dummy1'] == null;
$GLOBALS['dummy3'] += $GLOBALS['dummy2'] == null;
}