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 0.0102 seconds, (1.035% faster)

rand() 100%
array_rand() 98.965%

The rand() test took 0.9774 seconds.
The array_rand() test took 0.9877 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 274,847 loops for a total of 5,496,930 runs.

  • Line execution difference (0.000002) milliseconds.
  • Avg difference (0.000) milliseconds per 274,847 loops.
  • Total difference 10.22 milliseconds for 5,496,930 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 (7.2.15-1+ubuntu16.04.1+deb.sury.org+1)