Test: strpos/strtolower vs. stripos

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Result: Discarded

The test labeled "strpos()/strtolower()" was the faster by 0.0562 seconds, (4.971% faster)

strpos()/strtolower() 100%

stripos() 95.029%

The strpos()/strtolower() test took 1.075 seconds.
The stripos() test took 1.1312 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 288,466 loops for a total of 5,769,320 runs.

Line execution difference (0.000010) milliseconds.
Avg difference (2.812) milliseconds per 288,466 loops.
Total difference 56.23 milliseconds for 5,769,320 loops

The iteration variablity for Code 1 was (3.8679) milliseconds and Code 2 was (6.7323) 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;

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