PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: preg_split vs. explode/str_replace

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Result: Discarded

The test labeled "preg_split()" was the faster by 0.0312 seconds, (6.020% faster)

preg_split() 100%
explode() 93.98%

The preg_split() test took 0.4878 seconds.
The explode() test took 0.5191 seconds.


Each test case ran 20 random code order iterations consisting of 132,983 loops for a total of 2,659,660 runs.

  • Line execution difference (0.000012) milliseconds.
  • Avg difference (1.562) milliseconds per 132,983 loops.
  • Total difference 31.25 milliseconds for 2,659,660 loops

The iteration variablity for Code 1 was (0.8904) milliseconds and Code 2 was (2.7763) milliseconds. The lower and the closer together there values are the more accurate the results are.


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

$GLOBALS['dummy2'] = preg_split('~\r\n|\r|\n~', $GLOBALS['dummy']);

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

$GLOBALS['dummy2'] = explode("\n", str_replace(array("\r\n", "\r"), "\n", $GLOBALS['dummy']));

Running: Linux (x86_64:1 GB) PHP (