PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: file_exists vs. require

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Historical Results

Based on (2) saved test runs, The test labeled "file_exists()" was (on average) the faster by 0.0242 seconds, (2.845% faster)

file_exists() 100%
require 97.155%

The file_exists() test took 0.8269 seconds.
The require test took 0.8512 seconds.


Each test case ran 20 random code order iterations consisting of 208,754 loops for a total of 4,175,080 runs.

  • Line execution difference (0.000006) milliseconds.
  • Avg difference (0.000) milliseconds per 208,754 loops.
  • Total difference 24.21 milliseconds for 4,175,080 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, "file_exists()", was:


if (!file_exists('supplement/'))
	trigger_error('Required file not found!', E_USER_ERROR);

The second test, "require", was:


Running: Linux (x86_64:1 GB) PHP (