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 (1) saved test runs, The test labeled "rand()" was (on average) the faster by 0.0059 seconds, (1.046% faster)

rand() 100%
array_rand() 98.954%

The rand() test took 0.5559 seconds.
The array_rand() test took 0.5618 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 141,843 loops for a total of 2,836,860 runs.

  • Line execution difference (0.000002) milliseconds.
  • Avg difference (0.000) milliseconds per 141,843 loops.
  • Total difference 5.88 milliseconds for 2,836,860 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 (7.2.25-1+ubuntu16.04.1+deb.sury.org+1)