PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: is_float vs. Float Casting

Cast vs is_float

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Result: Discarded

The test labeled "is_float" was the faster by 0.0173 seconds, (3.440% faster)

is_float 100%
Casting 96.56%

The is_float test took 0.4846 seconds.
The Casting test took 0.5019 seconds.


Each test case ran 20 random code order iterations consisting of 137,192 loops for a total of 2,743,840 runs.

  • Line execution difference (0.000006) milliseconds.
  • Avg difference (0.863) milliseconds per 137,192 loops.
  • Total difference 17.26 milliseconds for 2,743,840 loops

The iteration variablity for Code 1 was (0.3601) milliseconds and Code 2 was (1.4026) milliseconds. The lower and the closer together there values are the more accurate the results are.


The first test, "is_float", was:

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

The second test, "Casting", was:

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

Running: Linux (x86_64:1 GB) PHP (