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 0.0611 seconds, (5.572% faster)

preg_split() 100%
explode() 94.428%

The preg_split() test took 1.035 seconds.
The explode() test took 1.0961 seconds.


Each test case ran 20 random code order iterations consisting of 286,202 loops for a total of 5,724,040 runs.

  • Line execution difference (0.000011) milliseconds.
  • Avg difference (3.053) milliseconds per 286,202 loops.
  • Total difference 61.07 milliseconds for 5,724,040 loops

The iteration variablity for Code 1 was (1.7504) milliseconds and Code 2 was (4.2716) 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 (