PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: foreach vs. while (list)

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Historical Results

Based on (1) saved test runs, The test labeled "foreach" was (on average) the faster by 0.0127 seconds, (2.425% faster)

foreach 100%
while (list) 97.575%

The foreach test took 0.5103 seconds.
The while (list) test took 0.523 seconds.


Each test case ran 20 random code order iterations consisting of 135,891 loops for a total of 2,717,820 runs.

  • Line execution difference (0.000005) milliseconds.
  • Avg difference (0.000) milliseconds per 135,891 loops.
  • Total difference 12.68 milliseconds for 2,717,820 loops

The iteration variablity for Code 1 was (0.0000) milliseconds and Code 2 was (0.0000) 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 (