PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: commas vs. interpolation on long strings

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Result: Discarded

The test labeled "interpolation" was the faster by 0.0099 seconds, (1.492% faster)

interpolation 100%
commas 98.508%

The interpolation test took 0.6562 seconds.
The commas test took 0.6661 seconds.


Each test case ran 20 random code order iterations consisting of 144,109 loops for a total of 2,882,180 runs.

  • Line execution difference (0.000003) milliseconds.
  • Avg difference (0.497) milliseconds per 144,109 loops.
  • Total difference 9.94 milliseconds for 2,882,180 loops

The iteration variablity for Code 1 was (7.6013) milliseconds and Code 2 was (6.1383) 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 (