PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: preg_split vs. explode/str_replace

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Historical Results

Based on (3) saved test runs, The test labeled "preg_split()" was (on average) the faster by 0.0071 seconds, (0.993% faster)

preg_split() 100%
explode() 99.007%

The preg_split() test took 0.7065 seconds.
The explode() test took 0.7136 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 187,711 loops for a total of 3,754,220 runs.

  • Line execution difference (0.000002) milliseconds.
  • Avg difference (0.000) milliseconds per 187,711 loops.
  • Total difference 7.09 milliseconds for 3,754,220 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.

Code

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 (7.2.15-1+ubuntu16.04.1+deb.sury.org+1)