Test: exec vs. shell_exec
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View test history (3) Run this test again Return to test menuResult: Discarded
The test labeled "shell_exec()" was the faster by 0.0319 seconds, (2.972% faster)
The shell_exec() test took 1.0404 seconds.
The exec() test took 1.0723 seconds.
Nitty-Gritty
Each test case ran 20 random code order iterations consisting of 283,926 loops for a total of 5,678,520 runs.
- Line execution difference (0.000006) milliseconds.
- Avg difference (1.594) milliseconds per 283,926 loops.
- Total difference 31.87 milliseconds for 5,678,520 loops
The iteration variablity for Code 1 was (5.3945) milliseconds and Code 2 was (2.4480) milliseconds. The lower and the closer together there values are the more accurate the results are.
Code
The first test, "exec()", was:
exec('ls');
The second test, "shell_exec()", was:
shell_exec('ls');