PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: stripos vs. strtolower(strpos)

Case insensitive search in a string for a set of characters.

View test history (9) Run this test again Return to test menu

Result: Discarded

The test labeled "stripos()" was the faster by 0.0055 seconds, (0.507% faster)

stripos() 100%
strtolower(strpos()) 99.493%

The stripos() test took 1.0829 seconds.
The strtolower(strpos()) test took 1.0884 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 269,297 loops for a total of 5,385,940 runs.

  • Line execution difference (0.000001) milliseconds.
  • Avg difference (0.276) milliseconds per 269,297 loops.
  • Total difference 5.52 milliseconds for 5,385,940 loops

The iteration variablity for Code 1 was (1.9089) milliseconds and Code 2 was (2.1629) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

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

for ($j = 0; $j < 100; $j++)
	$GLOBALS['dummy2'] = stripos($GLOBALS['dummy'], 'xyz') != '';

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

for ($j = 0; $j < 100; $j++)
	$GLOBALS['dummy2'] = strtolower(strpos($GLOBALS['dummy'], 24, 4) == 'xyz');

Running: Linux (x86_64:1 GB) PHP (7.2.15-1+ubuntu16.04.1+deb.sury.org+1)