PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: is_string vs. Casting

Cast vs is_string

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Historical Results

Based on (2) saved test runs, The test labeled "is_float" was (on average) the faster by 0.0084 seconds, (0.931% faster)

is_float 100%
Casting 99.069%

The is_float test took 0.8919 seconds.
The Casting test took 0.9003 seconds.


Each test case ran 20 random code order iterations consisting of 213,483 loops for a total of 4,269,650 runs.

  • Line execution difference (0.000002) milliseconds.
  • Avg difference (0.000) milliseconds per 213,483 loops.
  • Total difference 8.38 milliseconds for 4,269,650 loops

The iteration variablity for Code 1 was (0.0000) milliseconds and Code 2 was (0.0000) 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 (