Test: strpos/strtolower vs. stripos

No Description

Historical Results

Based on (2) saved test runs, The test labeled "strpos()/strtolower()" was (on average) the faster by 0.0113 seconds, (1.157% faster)

strpos()/strtolower() 100%

stripos() 98.843%

The strpos()/strtolower() test took 0.968 seconds.
The stripos() test took 0.9793 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 270,916 loops for a total of 5,418,320 runs.

Line execution difference (0.000002) milliseconds.
Avg difference (0.000) milliseconds per 270,916 loops.
Total difference 11.33 milliseconds for 5,418,320 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, "strpos()/strtolower()", was:

for ($j = 0; $j < 40; $j++)
	$GLOBALS['dummy'] = strpos(strtolower($GLOBALS['dummy_match']), '9abcd') === 5;
for ($j = 0; $j < 40; $j++)
	$GLOBALS['dummy'] = strpos(strtolower($GLOBALS['dummy_fail']), '9abcd') === 5;

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

for ($j = 0; $j < 40; $j++)
	$GLOBALS['dummy'] = stripos($GLOBALS['dummy_match'], '9abcd') === 5;
for ($j = 0; $j < 40; $j++)
	$GLOBALS['dummy'] = stripos($GLOBALS['dummy_fail'], '9abcd') === 5;

PHP Benchmarks