PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: commas vs. interpolation on short strings

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Result: Discarded

The test labeled "commas" was the faster by 0.0678 seconds, (5.614% faster)

commas 100%
interpolation 94.386%

The commas test took 1.1402 seconds.
The interpolation test took 1.2081 seconds.


Each test case ran 20 random code order iterations consisting of 287,330 loops for a total of 5,746,600 runs.

  • Line execution difference (0.000012) milliseconds.
  • Avg difference (3.391) milliseconds per 287,330 loops.
  • Total difference 67.82 milliseconds for 5,746,600 loops

The iteration variablity for Code 1 was (5.2697) milliseconds and Code 2 was (11.8707) 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, "interpolation", was:

echo "$GLOBALS[x] test $GLOBALS[y]$GLOBALS[z] test ";

Running: Linux (x86_64:1 GB) PHP (