Online PHP editor | perf for GF0up

<?php declare(strict_types=1); /** * Write a function that accepts an array of strings and return another array * with strings in the input array set as keys. * * @param string[] $arrOfStrings An array of strings. * @return array Another array with strings in the input array set as keys. */ function foo(array $arrOfStrings): array { return array_fill_keys(array_filter($arrOfStrings, 'is_string'), null); } /** * Now write another function that accepts the output of the previous function, * as first argument and another string as second argument. In this function, * assume that you have some reason to iterate over the the input array using * foreach, key => value format. In every iteration, in addition to other stuff, * you also have to check if the key is equal to the input string (the second * parameter of this function), and if they match do some stuff.... * * @param array $outputFromFoo The output from {@link foo()}. */ function bar(array $outputFromFoo, string $str) { foreach ($outputFromFoo as $key => $value) { // other stuff print "$key\n"; if (string $key === string $str) { echo "Found $str!"; } } } $result = foo(array('ab', 'cd', '10')); bar($result, '10');

Version	System time (s)	User time (s)	Memory (MiB)
7.0.2	0.023	0.040	20.19
7.0.1	0.003	0.093	20.04
7.0.0	0.003	0.043	20.25
5.6.17	0.023	0.047	20.51
5.6.16	0.007	0.073	20.51
5.6.15	0.007	0.077	18.16
5.6.14	0.007	0.067	18.18
5.6.13	0.003	0.043	18.18
5.6.12	0.017	0.043	20.98
5.6.11	0.003	0.093	20.99
5.6.10	0.007	0.040	21.11
5.6.9	0.000	0.067	21.00
5.6.8	0.010	0.070	20.41
5.5.31	0.023	0.043	20.27
5.5.30	0.007	0.080	17.95
5.5.29	0.007	0.053	17.98
5.5.28	0.007	0.087	20.88
5.5.27	0.010	0.080	20.96
5.5.26	0.003	0.077	20.79
5.5.25	0.007	0.037	20.61
5.5.24	0.020	0.077	20.26