Test: commas vs. interpolation on long strings
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The test labeled "commas" was the faster by 0.026 seconds, (2.048% faster)
The commas test took 1.2429 seconds.
The interpolation test took 1.2689 seconds.
Nitty-Gritty
Each test case ran 20 random code order iterations consisting of 291,676 loops for a total of 5,833,520 runs.
- Line execution difference (0.000004) milliseconds.
- Avg difference (1.299) milliseconds per 291,676 loops.
- Total difference 25.98 milliseconds for 5,833,520 loops
The iteration variablity for Code 1 was (11.3144) milliseconds and Code 2 was (12.7719) 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'], $GLOBALS['z'], ' test ';
The second test, "interpolation", was:
echo "$GLOBALS[x] test $GLOBALS[y]$GLOBALS[z] test ";