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 (6) Run this test again Return to test menu

Result: Saved

The test labeled "stripos()" was the faster by 0.0127 seconds, (2.569% faster)

stripos() 100%
strtolower(strpos()) 97.431%

The stripos() test took 0.4823 seconds.
The strtolower(strpos()) test took 0.495 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 137,529 loops for a total of 2,750,580 runs.

  • Line execution difference (0.000005) milliseconds.
  • Avg difference (0.636) milliseconds per 137,529 loops.
  • Total difference 12.71 milliseconds for 2,750,580 loops

The iteration variablity for Code 1 was (0.5011) milliseconds and Code 2 was (0.3867) 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 (7.2.19-1+ubuntu16.04.1+deb.sury.org+1)