Historical ResultsBased on (1) saved test runs, The test labeled "concat" was (on average) the faster by 0.0042 seconds, (0.431% faster)
The concat test took 0.9717 seconds.
The commas test took 0.9759 seconds.
Each test case ran 20 random code order iterations consisting of 262,924 loops for a total of 5,258,480 runs.
- Line execution difference (0.000001) milliseconds.
- Avg difference (0.000) milliseconds per 262,924 loops.
- Total difference 4.20 milliseconds for 5,258,480 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.
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 ';