PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: time vs. microtime(true)

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Result: Discarded

The test labeled "time()" was the faster by 0.0309 seconds, (5.237% faster)

time() 100%
microtime(true) 94.763%

The time() test took 0.5596 seconds.
The microtime(true) test took 0.5905 seconds.


Each test case ran 20 random code order iterations consisting of 147,259 loops for a total of 2,945,180 runs.

  • Line execution difference (0.000011) milliseconds.
  • Avg difference (1.546) milliseconds per 147,259 loops.
  • Total difference 30.93 milliseconds for 2,945,180 loops

The iteration variablity for Code 1 was (3.0141) milliseconds and Code 2 was (4.7893) milliseconds. The lower and the closer together there values are the more accurate the results are.


The first test, "time()", was:

for ($i = 0; $i < 100; $i++)
	$GLOBALS['dummy'] = time();

The second test, "microtime(true)", was:

for ($i = 0; $i < 100; $i++)
	$GLOBALS['dummy'] = microtime(true);

Running: Linux (x86_64:1 GB) PHP (