PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: preg_match vs. strpos (complex)

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Result: Discarded

The test labeled "preg_match()" was the faster by 0.0819 seconds, (8.708% faster)

preg_match() 100%
strpos() 91.292%

The preg_match() test took 0.8585 seconds.
The strpos() test took 0.9404 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 222,568 loops for a total of 4,451,360 runs.

  • Line execution difference (0.000018) milliseconds.
  • Avg difference (4.094) milliseconds per 222,568 loops.
  • Total difference 81.88 milliseconds for 4,451,360 loops

The iteration variablity for Code 1 was (5.8520) milliseconds and Code 2 was (9.6111) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

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

if (preg_match('~http://([^\./]+\.[^/]+?)/~', $GLOBALS['dummy'], $match) != 0)
	$GLOBALS['dummy2'] = $match[1];

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

$pos_start = strpos($GLOBALS['dummy'], 'http://') + strlen('http://');
$pos_slash = strpos($GLOBALS['dummy'], '/', $pos_start + 2);

$pos_dot = strpos($GLOBALS['dummy'], '.', $pos_start + 1);
if ($pos_dot !== null && $pos_dot < $pos_slash)
	$GLOBALS['dummy2'] = substr($GLOBALS['dummy'], $pos_start, $pos_slash - $pos_start);

Running: Linux (x86_64:1 GB) PHP (7.2.34-18+ubuntu16.04.1+deb.sury.org+1)