PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: ord v. unpack (int keys)

This test uses the more normal unpack format syntax vs. manual ord() calls.

View test history (2) Run this test again Return to test menu

Result: Discarded

The test labeled "ord()" was the faster by 0.06 seconds, (9.801% faster)

ord() 100%
unpack() 90.199%

The ord() test took 0.552 seconds.
The unpack() test took 0.612 seconds.


Each test case ran 20 random code order iterations consisting of 131,555 loops for a total of 2,631,100 runs.

  • Line execution difference (0.000023) milliseconds.
  • Avg difference (2.999) milliseconds per 131,555 loops.
  • Total difference 59.98 milliseconds for 2,631,100 loops

The iteration variablity for Code 1 was (2.8382) milliseconds and Code 2 was (4.4498) milliseconds. The lower and the closer together there values are the more accurate the results are.


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

$GLOBALS['dummy'] = array(
	0 => ord($GLOBALS['packed']{0}),
	1 => ord($GLOBALS['packed']{1}),
	2 => ord($GLOBALS['packed']{2}),
	3 => ord($GLOBALS['packed']{3}),

The second test, "unpack()", was:

$GLOBALS['dummy'] = unpack('C4', $GLOBALS['packed']);

Running: Linux (x86_64:1 GB) PHP (