PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: exec vs. shell_exec

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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.

Nitty-Gritty

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.

Code

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

exec('ls');

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

shell_exec('ls');

Running: Linux (x86_64:1 GB) PHP (7.2.34-21+ubuntu16.04.1+deb.sury.org+1)