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.

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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.

Nitty-Gritty

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.

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 (7.2.15-1+ubuntu16.04.1+deb.sury.org+1)