PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: foreach vs. while (list)

No Description

Run this test again Return to test menu

Result: Discarded

The test labeled "while (list)" was the faster by 0.0154 seconds, (1.390% faster)

while (list) 100%
foreach 98.61%

The while (list) test took 1.0908 seconds.
The foreach test took 1.1062 seconds.


Each test case ran 20 random code order iterations consisting of 278,645 loops for a total of 5,572,900 runs.

  • Line execution difference (0.000003) milliseconds.
  • Avg difference (0.769) milliseconds per 278,645 loops.
  • Total difference 15.38 milliseconds for 5,572,900 loops

The iteration variablity for Code 1 was (2.7213) milliseconds and Code 2 was (1.7774) milliseconds. The lower and the closer together there values are the more accurate the results are.


The first test, "foreach", was:

foreach ($GLOBALS['dummy'] as $v)
	$v[0] + 1;

The second test, "while (list)", was:

while (list(, $v) = each($GLOBALS['dummy']))
	$v[0] + 1;

Running: Linux (x86_64:1 GB) PHP (