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 0.0264 seconds, (2.540% faster)

exec() 100%
shell_exec() 97.46%

The exec() test took 1.0142 seconds.
The shell_exec() test took 1.0407 seconds.


Each test case ran 20 random code order iterations consisting of 226,919 loops for a total of 4,538,380 runs.

  • Line execution difference (0.000006) milliseconds.
  • Avg difference (0.000) milliseconds per 226,919 loops.
  • Total difference 26.43 milliseconds for 4,538,380 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 (