Test: preg_replace vs. str

Test: preg_replace vs. str_replace

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Result: Discarded

The test labeled "preg_replace()" was the faster by 0.0869 seconds, (7.556% faster)

preg_replace() 100%

str_replace() 92.444%

The preg_replace() test took 1.0632 seconds.
The str_replace() test took 1.1501 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 258,429 loops for a total of 5,168,580 runs.

Line execution difference (0.000017) milliseconds.
Avg difference (4.345) milliseconds per 258,429 loops.
Total difference 86.90 milliseconds for 5,168,580 loops

The iteration variablity for Code 1 was (2.7153) milliseconds and Code 2 was (4.8517) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

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

$GLOBALS['dummy2'] = preg_replace('~([Ww]heat|[Tt]hins)~', 'Nilla', $GLOBALS['dummy']);

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

$GLOBALS['dummy2'] = str_replace(array('Wheat', 'Thins', 'wheat', 'thins'), 'Nilla', $GLOBALS['dummy']);

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