PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: strpos/strtolower vs. stripos

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Historical Results

Based on (1) saved test runs, The test labeled "strpos()/strtolower()" was (on average) the faster by 0.0081 seconds, (1.470% faster)

strpos()/strtolower() 100%
stripos() 98.53%

The strpos()/strtolower() test took 0.5425 seconds.
The stripos() test took 0.5506 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 135,792 loops for a total of 2,715,840 runs.

  • Line execution difference (0.000003) milliseconds.
  • Avg difference (0.000) milliseconds per 135,792 loops.
  • Total difference 8.09 milliseconds for 2,715,840 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;

Running: Linux (x86_64:1 GB) PHP (7.2.25-1+ubuntu16.04.1+deb.sury.org+1)