$ php in_array_vs_isset_vs_array_key_exists.php
Function call in_array took 1.51871 seconds
Function call isset took 0.14684 seconds
Function call array_key_exists took 0.22123 seconds
Created
July 14, 2017 08:39
-
-
Save alcaeus/536156663fac96744eba77b3e133e50a to your computer and use it in GitHub Desktop.
Performance comparision: in-array vs. isset vs. array_key_exists
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
<?php declare(strict_types = 1); | |
function testPerformance($name, Closure $closure, $runs = 1000000) | |
{ | |
$start = microtime(true); | |
for (; $runs > 0; $runs--) | |
{ | |
$closure(); | |
} | |
$end = microtime(true); | |
printf("Function call %s took %.5f seconds\n", $name, $end - $start); | |
} | |
$items = [1111111]; | |
for ($i = 0; $i < 100000; $i++) { | |
$items[] = rand(0, 1000000); | |
} | |
$items = array_unique($items); | |
shuffle($items); | |
$assocItems = array_combine($items, array_fill(0, count($items), true)); | |
$in_array = function () use ($items) { | |
in_array(1111111, $items); | |
}; | |
$isset = function () use ($assocItems) { | |
isset($items[1111111]); | |
}; | |
$array_key_exists = function () use ($assocItems) { | |
array_key_exists(1111111, $assocItems); | |
}; | |
testPerformance('in_array', $in_array, 100000); | |
testPerformance('isset', $isset, 100000); | |
testPerformance('array_key_exists', $array_key_exists, 100000); |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
PHP Version 8.3.7 (cli)
MacOS 14.5
Apple M1 Pro 16GB
Run #1
Run #2
Run #3