Historical Results
Based on (2) saved test runs, The test labeled "rand()" was (on average) the faster by 0.0029 seconds, (0.360% faster)
The rand() test took 0.8068 seconds.
The mt_rand() test took 0.8097 seconds.
Nitty-Gritty
Each test case ran 20 random code order iterations consisting of 162,096 loops for a total of 3,241,910 runs.
- Line execution difference (0.000001) milliseconds.
- Avg difference (0.000) milliseconds per 162,096 loops.
- Total difference 2.92 milliseconds for 3,241,910 loops
The iteration variablity for Code 1 was (0.0000) milliseconds and Code 2 was (0.0000) milliseconds. The lower and the closer together there values are the more accurate the results are.
Code
The first test, "rand()", was:
$GLOBALS['dummy'] = rand(0, 1000);
The second test, "mt_rand()", was:
$GLOBALS['dummy'] = mt_rand(0, 1000);