PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: rand vs. array_rand (seq keys)

No Description

Run this test again Return to test menu

Historical Results

Based on (1) saved test runs, The test labeled "array_rand()" was (on average) the faster by 0.0209 seconds, (2.773% faster)

array_rand() 100%
rand() 97.227%

The array_rand() test took 0.7328 seconds.
The rand() test took 0.7537 seconds.


Each test case ran 20 random code order iterations consisting of 113,697 loops for a total of 2,273,940 runs.

  • Line execution difference (0.000009) milliseconds.
  • Avg difference (0.000) milliseconds per 113,697 loops.
  • Total difference 20.90 milliseconds for 2,273,940 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, "rand()", was:

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