Result: Discarded
The test labeled "if ($x && $y)" was the faster by 0.0261 seconds, (2.095% faster)
The if ($x && $y) test took 1.2188 seconds.
The if ($x) if ($y) test took 1.2448 seconds.
Nitty-Gritty
Each test case ran 20 random code order iterations consisting of 288,814 loops for a total of 5,776,280 runs.
- Line execution difference (0.000005) milliseconds.
- Avg difference (1.304) milliseconds per 288,814 loops.
- Total difference 26.07 milliseconds for 5,776,280 loops
The iteration variablity for Code 1 was (7.0712) milliseconds and Code 2 was (8.3412) milliseconds. The lower and the closer together there values are the more accurate the results are.
Code
The first test, "if ($x) if ($y)", was:
for ($i = 0; $i < 100; $i++)
{
if ($GLOBALS['dummy_false'] === false)
if ($GLOBALS['dummy_true'] === true)
$GLOBALS['dummy'] = 42;
}
The second test, "if ($x && $y)", was:
for ($i = 0; $i < 100; $i++)
{
if ($GLOBALS['dummy_false'] === false && $GLOBALS['dummy_true'] === true)
$GLOBALS['dummy'] = 42;
}