PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: is_string vs. Casting

Cast vs is_string

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Result: Discarded

The test labeled "is_float" was the faster by 0.0103 seconds, (1.436% faster)

is_float 100%
Casting 98.564%

The is_float test took 0.7055 seconds.
The Casting test took 0.7158 seconds.


Each test case ran 20 random code order iterations consisting of 139,357 loops for a total of 2,787,140 runs.

  • Line execution difference (0.000004) milliseconds.
  • Avg difference (0.514) milliseconds per 139,357 loops.
  • Total difference 10.28 milliseconds for 2,787,140 loops

The iteration variablity for Code 1 was (6.3070) milliseconds and Code 2 was (5.3863) 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 (