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 (3) saved test runs, The test labeled "is_float" was (on average) the faster by 0.025 seconds, (2.969% faster)

is_float 100%
Casting 97.031%

The is_float test took 0.8164 seconds.
The Casting test took 0.8414 seconds.


Each test case ran 20 random code order iterations consisting of 142,451 loops for a total of 2,849,027 runs.

  • Line execution difference (0.000009) milliseconds.
  • Avg difference (0.000) milliseconds per 142,451 loops.
  • Total difference 24.98 milliseconds for 2,849,027 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 (