PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: rand vs. array_rand (odd keys)

No Description

View test history (2) Run this test again Return to test menu

Result: Discarded

The test labeled "rand()" was the faster by 0.0758 seconds, (11.999% faster)

rand() 100%
array_rand() 88.001%

The rand() test took 0.5561 seconds.
The array_rand() test took 0.6319 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 138,999 loops for a total of 2,779,980 runs.

  • Line execution difference (0.000027) milliseconds.
  • Avg difference (3.791) milliseconds per 138,999 loops.
  • Total difference 75.82 milliseconds for 2,779,980 loops

The iteration variablity for Code 1 was (2.4741) milliseconds and Code 2 was (4.9569) 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)