PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: system vs. shell_exec

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Result: Saved

The test labeled "shell_exec()" was the faster by 0.0002 seconds, (0.014% faster)

shell_exec() 100%
system() 99.986%

The shell_exec() test took 1.0719 seconds.
The system() test took 1.072 seconds.


Each test case ran 20 random code order iterations consisting of 293,103 loops for a total of 5,862,060 runs.

  • Line execution difference (0.000000) milliseconds.
  • Avg difference (0.008) milliseconds per 293,103 loops.
  • Total difference 0.15 milliseconds for 5,862,060 loops

The iteration variablity for Code 1 was (1.5876) milliseconds and Code 2 was (1.4421) milliseconds. The lower and the closer together there values are the more accurate the results are.


The first test, "system()", was:


The second test, "shell_exec()", was:

echo shell_exec('ls');

Running: Linux (x86_64:1 GB) PHP (