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 (4) Run this test again Return to test menu

Result: Discarded

The test labeled "foreach" was the faster by 0.003 seconds, (0.532% faster)

foreach 100%
array_map() 99.468%

The foreach test took 0.5548 seconds.
The array_map() test took 0.5578 seconds.


Each test case ran 20 random code order iterations consisting of 147,790 loops for a total of 2,955,800 runs.

  • Line execution difference (0.000001) milliseconds.
  • Avg difference (0.148) milliseconds per 147,790 loops.
  • Total difference 2.97 milliseconds for 2,955,800 loops

The iteration variablity for Code 1 was (2.2281) milliseconds and Code 2 was (2.0444) 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 (