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 (9) Run this test again Return to test menu

Result: Discarded

The test labeled "unpack()" was the faster by 0.0278 seconds, (4.503% faster)

unpack() 100%
ord() 95.497%

The unpack() test took 0.5899 seconds.
The ord() test took 0.6177 seconds.


Each test case ran 20 random code order iterations consisting of 146,257 loops for a total of 2,925,140 runs.

  • Line execution difference (0.000010) milliseconds.
  • Avg difference (1.391) milliseconds per 146,257 loops.
  • Total difference 27.82 milliseconds for 2,925,140 loops

The iteration variablity for Code 1 was (6.5266) milliseconds and Code 2 was (4.3637) 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 (