PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: stripos vs. strtolower(strpos)

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

Run this test again Return to test menu

Historical Results

Based on (6) saved test runs, The test labeled "stripos()" was (on average) the faster by 0.0249 seconds, (3.779% faster)

stripos() 100%
strtolower(strpos()) 96.221%

The stripos() test took 0.6328 seconds.
The strtolower(strpos()) test took 0.6577 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 169,964 loops for a total of 3,399,287 runs.

  • Line execution difference (0.000007) milliseconds.
  • Avg difference (0.000) milliseconds per 169,964 loops.
  • Total difference 24.86 milliseconds for 3,399,287 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, "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)