PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: strtr vs. str_replace on short strings

The short string in this test is 750 characters long with 10 occurances of the replacement

View test history (7) Run this test again Return to test menu

Result: Saved

The test labeled "strtr()" was the faster by 0.0127 seconds, (1.896% faster)

strtr() 100%
str_replace() 98.104%

The strtr() test took 0.6579 seconds.
The str_replace() test took 0.6706 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 164,401 loops for a total of 3,288,020 runs.

  • Line execution difference (0.000004) milliseconds.
  • Avg difference (0.636) milliseconds per 164,401 loops.
  • Total difference 12.72 milliseconds for 3,288,020 loops

The iteration variablity for Code 1 was (1.4225) milliseconds and Code 2 was (1.3631) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

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

strtr($GLOBALS['dummy'], array('string' => 'STRING!'));

The second test, "str_replace()", was:

str_replace('string', 'STRING!', $GLOBALS['dummy']);

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