Test: file_exists vs. require

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Result: Discarded

The test labeled "require" was the faster by 0.0024 seconds, (0.463% faster)

require 100%

file_exists() 99.537%

The require test took 0.5234 seconds.
The file_exists() test took 0.5258 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 138,689 loops for a total of 2,773,780 runs.

Line execution difference (0.000001) milliseconds.
Avg difference (0.122) milliseconds per 138,689 loops.
Total difference 2.43 milliseconds for 2,773,780 loops

The iteration variablity for Code 1 was (1.6363) milliseconds and Code 2 was (1.0409) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

The first test, "file_exists()", was:

clearstatcache();

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

The second test, "require", was:

clearstatcache();
require('supplement/dummy.inc');

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