PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: exec vs. shell_exec

No Description

Run this test again Return to test menu

Historical Results

Based on (3) saved test runs, The test labeled "exec()" was (on average) the faster by 0.0293 seconds, (3.328% faster)

exec() 100%
shell_exec() 96.672%

The exec() test took 0.8499 seconds.
The shell_exec() test took 0.8792 seconds.


Each test case ran 20 random code order iterations consisting of 180,476 loops for a total of 3,609,520 runs.

  • Line execution difference (0.000008) milliseconds.
  • Avg difference (0.000) milliseconds per 180,476 loops.
  • Total difference 29.26 milliseconds for 3,609,520 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.


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


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


Running: Linux (x86_64:1 GB) PHP (