PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: strtr vs. str_replace on long strings

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Historical Results

Based on (6) saved test runs, The test labeled "str_replace()" was (on average) the faster by 0.0045 seconds, (0.473% faster)

str_replace() 100%
strtr() 99.527%

The str_replace() test took 0.9554 seconds.
The strtr() test took 0.9599 seconds.


Each test case ran 20 random code order iterations consisting of 250,030 loops for a total of 5,000,607 runs.

  • Line execution difference (0.000001) milliseconds.
  • Avg difference (0.000) milliseconds per 250,030 loops.
  • Total difference 4.54 milliseconds for 5,000,607 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 (