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<?php $time = microtime(true); for ($i = 0; $i < 1000000; $i++) { parse_url('https://stackoverflow.com/questions/20248666/in-this-case-which-is-better-in-matching-regular-expression-or-parse-url', PHP_URL_SCHEME); } echo number_format(microtime(true) - $time, 10), "\n"; $time = microtime(true); for ($i = 0; $i < 1000000; $i++) { strpos('https://stackoverflow.com/questions/20248666/in-this-case-which-is-better-in-matching-regular-expression-or-parse-url', '://'); strpos('https://stackoverflow.com/questions/20248666/in-this-case-which-is-better-in-matching-regular-expression-or-parse-url', '?'); } echo number_format(microtime(true) - $time, 10);
Output for git.master
0.1570990086 0.0292520523
Output for git.master_jit
0.1755769253 0.0313448906
Output for rfc.property-hooks
0.1723871231 0.0263109207

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