PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: array_map vs. foreach

Is there a benefit to using array_map() over a simple foreach?

View test history (8) Run this test again Return to test menu

Result: Discarded

The test labeled "array_map()" was the faster by 0.1162 seconds, (16.432% faster)

array_map() 100%
foreach 83.568%

The array_map() test took 0.591 seconds.
The foreach test took 0.7072 seconds.


Each test case ran 20 random code order iterations consisting of 151,926 loops for a total of 3,038,520 runs.

  • Line execution difference (0.000038) milliseconds.
  • Avg difference (5.810) milliseconds per 151,926 loops.
  • Total difference 116.21 milliseconds for 3,038,520 loops

The iteration variablity for Code 1 was (2.9331) milliseconds and Code 2 was (6.7981) milliseconds. The lower and the closer together there values are the more accurate the results are.


The first test, "array_map()", was:

function foo($v)
	return $v * 2;

$array = array_map('foo', $GLOBALS['dummy']);

The second test, "foreach", was:

$array = array();
foreach ($GLOBALS['dummy'] as $k => $v)
	$array[$k] = $v * 2;

Running: Linux (x86_64:1 GB) PHP (