Test: system vs. shell_exec
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View test history (3) Run this test again Return to test menuResult: Discarded
The test labeled "system()" was the faster by 0.0756 seconds, (8.176% faster)
The system() test took 0.8489 seconds.
The shell_exec() test took 0.9245 seconds.
Nitty-Gritty
Each test case ran 20 random code order iterations consisting of 222,155 loops for a total of 4,443,100 runs.
- Line execution difference (0.000017) milliseconds.
- Avg difference (3.779) milliseconds per 222,155 loops.
- Total difference 75.59 milliseconds for 4,443,100 loops
The iteration variablity for Code 1 was (1.6413) milliseconds and Code 2 was (3.9382) milliseconds. The lower and the closer together there values are the more accurate the results are.
Code
The first test, "system()", was:
system('ls');
The second test, "shell_exec()", was:
echo shell_exec('ls');