PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: preg_split vs. explode/str_replace

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Historical Results

Based on (4) saved test runs, The test labeled "preg_split()" was (on average) the faster by 0.0278 seconds, (2.857% faster)

preg_split() 100%
explode() 97.143%

The preg_split() test took 0.944 seconds.
The explode() test took 0.9717 seconds.


Each test case ran 20 random code order iterations consisting of 236,394 loops for a total of 4,727,885 runs.

  • Line execution difference (0.000006) milliseconds.
  • Avg difference (0.000) milliseconds per 236,394 loops.
  • Total difference 27.76 milliseconds for 4,727,885 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, "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 (