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 (3) Run this test again Return to test menu

Result: Discarded

The test labeled "ord()" was the faster by 0.0625 seconds, (4.632% faster)

ord() 100%
unpack() 95.368%

The ord() test took 1.2862 seconds.
The unpack() test took 1.3487 seconds.


Each test case ran 20 random code order iterations consisting of 285,569 loops for a total of 5,711,380 runs.

  • Line execution difference (0.000011) milliseconds.
  • Avg difference (3.123) milliseconds per 285,569 loops.
  • Total difference 62.47 milliseconds for 5,711,380 loops

The iteration variablity for Code 1 was (8.5127) milliseconds and Code 2 was (9.4205) 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 (