Test: chr v. literal
How much worse is chr() than just a literal (if it's cleanly representable.)
View test history (3) Run this test again Return to test menuResult: Discarded
The test labeled "chr()" was the faster by 0.0354 seconds, (3.277% faster)
The chr() test took 1.0442 seconds.
The literal test took 1.0796 seconds.
Nitty-Gritty
Each test case ran 20 random code order iterations consisting of 284,215 loops for a total of 5,684,300 runs.
- Line execution difference (0.000006) milliseconds.
- Avg difference (1.769) milliseconds per 284,215 loops.
- Total difference 35.38 milliseconds for 5,684,300 loops
The iteration variablity for Code 1 was (3.6380) milliseconds and Code 2 was (5.3047) milliseconds. The lower and the closer together there values are the more accurate the results are.
Code
The first test, "chr()", was:
$GLOBALS['dummy'] = chr(65);
The second test, "literal", was:
$GLOBALS['dummy'] = 'A';