Test: commas vs. concat on long strings

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Result: Discarded

The test labeled "concat" was the faster by 0.0173 seconds, (3.582% faster)

concat 100%

commas 96.418%

The concat test took 0.4664 seconds.
The commas test took 0.4838 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 113,851 loops for a total of 2,277,020 runs.

Line execution difference (0.000008) milliseconds.
Avg difference (0.866) milliseconds per 113,851 loops.
Total difference 17.33 milliseconds for 2,277,020 loops

The iteration variablity for Code 1 was (3.5224) milliseconds and Code 2 was (3.2717) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

The first test, "commas", was:

echo $GLOBALS['x'], ' test ', $GLOBALS['y'], $GLOBALS['z'], ' test ';

The second test, "concat", was:

echo $GLOBALS['x'] . ' test ' . $GLOBALS['y'] . $GLOBALS['z'] . ' test ';

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