PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: rand vs. array_rand (seq keys)

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Result: Discarded

The test labeled "array_rand()" was the faster by 0.006 seconds, (1.189% faster)

array_rand() 100%
rand() 98.811%

The array_rand() test took 0.497 seconds.
The rand() test took 0.503 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 130,227 loops for a total of 2,604,540 runs.

  • Line execution difference (0.000002) milliseconds.
  • Avg difference (0.299) milliseconds per 130,227 loops.
  • Total difference 5.98 milliseconds for 2,604,540 loops

The iteration variablity for Code 1 was (3.2104) milliseconds and Code 2 was (2.4668) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

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 (7.2.25-1+ubuntu16.04.1+deb.sury.org+1)