PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: strtr vs. str_replace on long strings

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Historical Results

Based on (3) saved test runs, The test labeled "str_replace()" was (on average) the faster by 0.0117 seconds, (1.097% faster)

str_replace() 100%
strtr() 98.903%

The str_replace() test took 1.051 seconds.
The strtr() test took 1.0627 seconds.


Each test case ran 20 random code order iterations consisting of 271,579 loops for a total of 5,431,580 runs.

  • Line execution difference (0.000002) milliseconds.
  • Avg difference (0.000) milliseconds per 271,579 loops.
  • Total difference 11.66 milliseconds for 5,431,580 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 (