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 0.0216 seconds, (3.265% faster)

while (list) 100%
foreach 96.735%

The while (list) test took 0.6411 seconds.
The foreach test took 0.6628 seconds.


Each test case ran 20 random code order iterations consisting of 129,144 loops for a total of 2,582,880 runs.

  • Line execution difference (0.000008) milliseconds.
  • Avg difference (1.082) milliseconds per 129,144 loops.
  • Total difference 21.64 milliseconds for 2,582,880 loops

The iteration variablity for Code 1 was (6.6379) milliseconds and Code 2 was (7.9004) 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 (