Test: commas vs. concat on long strings

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Result: Discarded

The test labeled "commas" was the faster by 0.006 seconds, (0.578% faster)

commas 100%

concat 99.422%

The commas test took 1.0375 seconds.
The concat test took 1.0435 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 272,048 loops for a total of 5,440,960 runs.

Line execution difference (0.000001) milliseconds.
Avg difference (0.302) milliseconds per 272,048 loops.
Total difference 6.03 milliseconds for 5,440,960 loops

The iteration variablity for Code 1 was (1.7036) milliseconds and Code 2 was (2.0329) 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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