PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: strtr vs. str_replace on long strings

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Result: Discarded

The test labeled "strtr()" was the faster by 0.0189 seconds, (3.738% faster)

strtr() 100%
str_replace() 96.262%

The strtr() test took 0.4859 seconds.
The str_replace() test took 0.5048 seconds.


Each test case ran 20 random code order iterations consisting of 106,711 loops for a total of 2,134,220 runs.

  • Line execution difference (0.000009) milliseconds.
  • Avg difference (0.943) milliseconds per 106,711 loops.
  • Total difference 18.87 milliseconds for 2,134,220 loops

The iteration variablity for Code 1 was (2.3598) milliseconds and Code 2 was (2.8190) milliseconds. The lower and the closer together there values are the more accurate the results are.


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


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


Running: Linux (x86_64:1 GB) PHP (