PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: strpos/strtolower vs. stripos

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Result: Discarded

The test labeled "stripos()" was the faster by 0.0534 seconds, (4.745% faster)

stripos() 100%
strpos()/strtolower() 95.255%

The stripos() test took 1.0711 seconds.
The strpos()/strtolower() test took 1.1245 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 281,355 loops for a total of 5,627,100 runs.

  • Line execution difference (0.000009) milliseconds.
  • Avg difference (2.668) milliseconds per 281,355 loops.
  • Total difference 53.36 milliseconds for 5,627,100 loops

The iteration variablity for Code 1 was (7.4323) milliseconds and Code 2 was (2.5680) 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)