PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: commas vs. concat on short strings

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Result: Saved

The test labeled "commas" was the faster by 0.0233 seconds, (3.797% faster)

commas 100%
concat 96.203%

The commas test took 0.5908 seconds.
The concat test took 0.6141 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 147,556 loops for a total of 2,951,120 runs.

  • Line execution difference (0.000008) milliseconds.
  • Avg difference (1.166) milliseconds per 147,556 loops.
  • Total difference 23.32 milliseconds for 2,951,120 loops

The iteration variablity for Code 1 was (1.3047) milliseconds and Code 2 was (1.3242) 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, "concat", was:

echo $GLOBALS['x'] . ' test ' . $GLOBALS['y'] . $GLOBALS['z'] . ' test ';

Running: Linux (x86_64:1 GB) PHP (7.2.15-1+ubuntu16.04.1+deb.sury.org+1)