PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: rand vs. array_rand (odd keys)

No Description

Run this test again Return to test menu

Historical Results

Based on (2) saved test runs, The test labeled "rand()" was (on average) the faster by 0.0194 seconds, (2.809% faster)

rand() 100%
array_rand() 97.191%

The rand() test took 0.6721 seconds.
The array_rand() test took 0.6915 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 182,184 loops for a total of 3,643,670 runs.

  • Line execution difference (0.000005) milliseconds.
  • Avg difference (0.000) milliseconds per 182,184 loops.
  • Total difference 19.42 milliseconds for 3,643,670 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, "rand()", was:

$keys = array_keys($GLOBALS['array']);
$key = rand(0, count($keys) - 1);
$GLOBALS['dummy'] = $GLOBALS['array'][$keys[$key]];

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

$key = array_rand($GLOBALS['array'], 1);
$GLOBALS['dummy'] = $GLOBALS['array'][$key];

Running: Linux (x86_64:1 GB) PHP (7.2.19-1+ubuntu16.04.1+deb.sury.org+1)