PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: is_string vs. Casting

Cast vs is_string

View test history (2) Run this test again Return to test menu

Result: Discarded

The test labeled "is_float" was the faster by 0.0198 seconds, (3.764% faster)

is_float 100%
Casting 96.236%

The is_float test took 0.5056 seconds.
The Casting test took 0.5253 seconds.


Each test case ran 20 random code order iterations consisting of 145,711 loops for a total of 2,914,220 runs.

  • Line execution difference (0.000007) milliseconds.
  • Avg difference (0.989) milliseconds per 145,711 loops.
  • Total difference 19.77 milliseconds for 2,914,220 loops

The iteration variablity for Code 1 was (0.2985) milliseconds and Code 2 was (0.5487) 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 (