PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: strtr vs. str_replace on long strings

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Historical Results

Based on (1) saved test runs, The test labeled "strtr()" was (on average) the faster by 0.0074 seconds, (1.483% faster)

strtr() 100%
str_replace() 98.517%

The strtr() test took 0.4942 seconds.
The str_replace() test took 0.5017 seconds.


Each test case ran 20 random code order iterations consisting of 136,046 loops for a total of 2,720,920 runs.

  • Line execution difference (0.000003) milliseconds.
  • Avg difference (0.000) milliseconds per 136,046 loops.
  • Total difference 7.44 milliseconds for 2,720,920 loops

The iteration variablity for Code 1 was (0.0000) milliseconds and Code 2 was (0.0000) 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 (