PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: foreach vs. while (list)

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Result: Discarded

The test labeled "while (list)" was the faster by 0.0197 seconds, (1.545% faster)

while (list) 100%
foreach 98.455%

The while (list) test took 1.253 seconds.
The foreach test took 1.2727 seconds.


Each test case ran 20 random code order iterations consisting of 283,207 loops for a total of 5,664,140 runs.

  • Line execution difference (0.000003) milliseconds.
  • Avg difference (0.983) milliseconds per 283,207 loops.
  • Total difference 19.67 milliseconds for 5,664,140 loops

The iteration variablity for Code 1 was (11.0180) milliseconds and Code 2 was (8.7685) 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 (