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 0.0112 seconds, (1.045% faster)

interpolation 100%
commas 98.955%

The interpolation test took 1.0627 seconds.
The commas test took 1.0739 seconds.


Each test case ran 20 random code order iterations consisting of 288,169 loops for a total of 5,763,380 runs.

  • Line execution difference (0.000002) milliseconds.
  • Avg difference (0.561) milliseconds per 288,169 loops.
  • Total difference 11.22 milliseconds for 5,763,380 loops

The iteration variablity for Code 1 was (2.4209) milliseconds and Code 2 was (1.7355) 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 (