PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: is_string vs. Casting

Cast vs is_string

View test history (6) Run this test again Return to test menu

Result: Discarded

The test labeled "is_float" was the faster by 0.0053 seconds, (0.677% faster)

is_float 100%
Casting 99.323%

The is_float test took 0.7747 seconds.
The Casting test took 0.7799 seconds.


Each test case ran 20 random code order iterations consisting of 190,477 loops for a total of 3,809,540 runs.

  • Line execution difference (0.000001) milliseconds.
  • Avg difference (0.264) milliseconds per 190,477 loops.
  • Total difference 5.28 milliseconds for 3,809,540 loops

The iteration variablity for Code 1 was (2.9758) milliseconds and Code 2 was (2.3003) milliseconds. The lower and the closer together there values are the more accurate the results are.


The first test, "is_float", was:

$a = is_string($GLOBALS['test']);

The second test, "Casting", was:

$a = (string) $GLOBALS['test'] === $GLOBALS['test'];

Running: Linux (x86_64:1 GB) PHP (