PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: strtr vs. str_replace on long strings

String replacement performance on a 37,500 character string.

View test history (1) Run this test again Return to test menu

Result: Discarded

The test labeled "str_replace()" was the faster by 0.0387 seconds, (3.727% faster)

str_replace() 100%
strtr() 96.273%

The str_replace() test took 0.9999 seconds.
The strtr() test took 1.0386 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 151,227 loops for a total of 3,024,540 runs.

  • Line execution difference (0.000013) milliseconds.
  • Avg difference (1.935) milliseconds per 151,227 loops.
  • Total difference 38.71 milliseconds for 3,024,540 loops

The iteration variablity for Code 1 was (3.7974) milliseconds and Code 2 was (5.7120) 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 (7.2.25-1+ubuntu16.04.1+deb.sury.org+1)