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.

Run this test again Return to test menu

Historical Results

Based on (4) saved test runs, The test labeled "ord()" was (on average) the faster by 0.0215 seconds, (2.585% faster)

ord() 100%
unpack() 97.415%

The ord() test took 0.8104 seconds.
The unpack() test took 0.8319 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 220,867 loops for a total of 4,417,345 runs.

  • Line execution difference (0.000005) milliseconds.
  • Avg difference (0.000) milliseconds per 220,867 loops.
  • Total difference 21.50 milliseconds for 4,417,345 loops

The iteration variablity for Code 1 was (0.0000) milliseconds and Code 2 was (0.0000) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

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 (7.2.19-1+ubuntu16.04.1+deb.sury.org+1)