Test: === null vs. == null
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View test history (2) Run this test again Return to test menuResult: Discarded
The test labeled "=== null" was the faster by 0.0593 seconds, (10.518% faster)
The === null test took 0.5046 seconds.
The == null test took 0.5639 seconds.
Nitty-Gritty
Each test case ran 20 random code order iterations consisting of 127,884 loops for a total of 2,557,680 runs.
- Line execution difference (0.000023) milliseconds.
- Avg difference (2.966) milliseconds per 127,884 loops.
- Total difference 59.32 milliseconds for 2,557,680 loops
The iteration variablity for Code 1 was (1.4824) milliseconds and Code 2 was (2.1916) 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;
}