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 "rand()" was (on average) the faster by 0.0165 seconds, (1.647% faster)

rand() 100%
array_rand() 98.353%

The rand() test took 0.9853 seconds.
The array_rand() test took 1.0018 seconds.


Each test case ran 20 random code order iterations consisting of 277,768 loops for a total of 5,555,360 runs.

  • Line execution difference (0.000003) milliseconds.
  • Avg difference (0.000) milliseconds per 277,768 loops.
  • Total difference 16.50 milliseconds for 5,555,360 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 (