PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: foreach vs. while (list)

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Result: Discarded

The test labeled "foreach" was the faster by 0.049 seconds, (8.446% faster)

foreach 100%
while (list) 91.554%

The foreach test took 0.5314 seconds.
The while (list) test took 0.5804 seconds.


Each test case ran 20 random code order iterations consisting of 147,142 loops for a total of 2,942,840 runs.

  • Line execution difference (0.000017) milliseconds.
  • Avg difference (2.451) milliseconds per 147,142 loops.
  • Total difference 49.03 milliseconds for 2,942,840 loops

The iteration variablity for Code 1 was (1.9404) milliseconds and Code 2 was (4.8034) 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 (