Test: (int) vs. settype
If you already have a variable, logic tells us that changing is type might be faster than creating a new value (which a cast does.) But, is this true?
Run this test again Return to test menuResult: Discarded
The test labeled "settype()" was the faster by 0.0335 seconds, (6.151% faster)
The settype() test took 0.5115 seconds.
The (int) test took 0.5451 seconds.
Nitty-Gritty
Each test case ran 20 random code order iterations consisting of 133,396 loops for a total of 2,667,920 runs.
- Line execution difference (0.000013) milliseconds.
- Avg difference (1.676) milliseconds per 133,396 loops.
- Total difference 33.53 milliseconds for 2,667,920 loops
The iteration variablity for Code 1 was (3.8885) milliseconds and Code 2 was (1.8048) milliseconds. The lower and the closer together there values are the more accurate the results are.
Code
The first test, "(int)", was:
for ($j = 0; $j < 100; $j++) { $i = '42 '; $i = (int) $i; }
The second test, "settype()", was:
for ($j = 0; $j < 100; $j++) { $i = '42 '; settype($i, 'int'); }