Test: exec vs. shell

Test: exec vs. shell_exec

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Result: Discarded

The test labeled "shell_exec()" was the faster by 0.0696 seconds, (7.090% faster)

shell_exec() 100%

exec() 92.91%

The shell_exec() test took 0.9117 seconds.
The exec() test took 0.9813 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 140,701 loops for a total of 2,814,020 runs.

Line execution difference (0.000025) milliseconds.
Avg difference (3.479) milliseconds per 140,701 loops.
Total difference 69.58 milliseconds for 2,814,020 loops

The iteration variablity for Code 1 was (6.6361) milliseconds and Code 2 was (7.4843) 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');

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