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

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Result: Discarded

The test labeled "str_replace()" was the faster by 0.0115 seconds, (0.929% faster)

str_replace() 100%
strtr() 99.071%

The str_replace() test took 1.2306 seconds.
The strtr() test took 1.2421 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 257,556 loops for a total of 5,151,120 runs.

  • Line execution difference (0.000002) milliseconds.
  • Avg difference (0.577) milliseconds per 257,556 loops.
  • Total difference 11.54 milliseconds for 5,151,120 loops

The iteration variablity for Code 1 was (12.2391) milliseconds and Code 2 was (11.4257) 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)