Online PHP editor | perf for Vb0rJ

<?php $urls = [ 'absolute' => 'https://stackoverflow.com/questions/20248666/in-this-case-which-is-better-in-matching-regular-expression-or-parse-url', 'relative' => '/questions/20248666/in-this-case-which-is-better-in-matching-regular-expression-or-parse-url', 'absolute-with-query' => 'https://stackoverflow.com/questions/20248666/in-this-case-which-is-better-in-matching-regular-expression-or-parse-url?r=https://3v4l.org', 'relative-with-query' => '/questions/20248666/in-this-case-which-is-better-in-matching-regular-expression-or-parse-url?r=https://3v4l.org', ]; $parseTester = function ($url) { $urlComponents = parse_url($url, PHP_URL_SCHEME); return strncmp($url, '//', 2) && empty($urlComponents); }; $regexpTester = function ($url) { return preg_match('@^((\w+):)?//@', $url); }; $strposTester = function ($url) { return strpos($url, 'https://') !== 0 || strpos($url, 'http://') !== 0 || strpos($url, '//') !== 0; }; $strposAlternativeTester = function ($url) { if (strncmp($url, '//', 2) === 0) { return false; } $pos = strpos($url, '://'); if ($pos === false) { return true; } $queryPos = strpos($url, '?'); return $queryPos === false || $pos < $queryPos; }; $test = function ($testerName, $callback) use ($urls) { foreach ($urls as $scenario => $url) { $time = microtime(true); for ($i = 0; $i < 1000000; $i++) { $callback($url); } echo "$testerName-$scenario: ", number_format(microtime(true) - $time, 10), "\n"; } echo "\n"; }; $test('parseTester', $parseTester); $test('regexpTester', $regexpTester); $test('strposTester', $strposTester); $test('strposAlternativeTester', $strposAlternativeTester);

Version	System time (s)	User time (s)	Memory (MiB)
8.3.1	0.006	1.547	22.64
8.3.0	0.003	1.709	19.13
8.2.14	0.013	1.731	22.27
8.2.13	0.007	1.581	20.64
8.2.12	0.007	1.591	19.22
8.2.11	0.003	1.497	19.25
8.2.10	0.003	1.544	19.10
8.2.9	0.007	1.526	19.14
8.2.8	0.010	1.487	19.28
8.2.7	0.013	1.566	20.81
8.2.6	0.023	1.602	20.75
8.2.5	0.017	1.530	19.03
8.2.4	0.013	1.549	18.90
8.2.3	0.003	1.542	18.95
8.2.2	0.007	1.550	20.54
8.2.1	0.000	1.520	20.76
8.2.0	0.007	1.576	20.60
8.1.27	0.013	1.554	24.01
8.1.26	0.007	1.567	22.16
8.1.25	0.013	1.582	22.39
8.1.24	0.010	1.509	18.70
8.1.23	0.003	1.559	18.79
8.1.22	0.003	1.603	19.12
8.1.21	0.013	1.563	20.48
8.1.20	0.013	1.603	20.46
8.1.19	0.003	1.597	20.33
8.1.18	0.010	1.537	18.55
8.1.17	0.010	1.519	18.87
8.1.16	0.007	1.489	18.86
8.1.15	0.017	1.570	18.74
8.1.14	0.003	1.628	18.64
8.1.13	0.013	1.595	18.82
8.1.12	0.013	1.594	18.66
8.1.11	0.007	1.563	18.88
8.1.10	0.000	1.560	20.41
8.1.9	0.003	1.575	18.88
8.1.8	0.003	1.584	18.80
8.1.7	0.010	1.541	18.79
8.1.6	0.007	1.534	19.01
8.1.5	0.007	1.548	18.88
8.1.4	0.007	1.573	19.06
8.1.3	0.010	1.553	18.89
8.1.2	0.007	1.533	18.99
8.1.1	0.013	1.572	19.07
8.1.0	0.003	1.774	18.86