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 0.0744 seconds, (5.647% faster)

while (list) 100%
foreach 94.353%

The while (list) test took 1.243 seconds.
The foreach test took 1.3174 seconds.


Each test case ran 20 random code order iterations consisting of 273,913 loops for a total of 5,478,260 runs.

  • Line execution difference (0.000014) milliseconds.
  • Avg difference (3.719) milliseconds per 273,913 loops.
  • Total difference 74.39 milliseconds for 5,478,260 loops

The iteration variablity for Code 1 was (10.1959) milliseconds and Code 2 was (13.0739) 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 (