Online PHP editor | refs for DZgrc

<?php define('TEST_LOOPS', 10); define('TEST_STRING', str_repeat('English+日に本ほん語ご', 16000)); //define('TEST_STRING', str_repeat('English', 16000)); //define('TEST_STRING', str_repeat('日に本ほん語ご', 16000)); error_reporting(-1); mb_internal_encoding('UTF-8'); function test($label, $callback) { $time = microtime(true); for ($i = 0; $i < TEST_LOOPS; $i++) { $callback(); } $duration = microtime(true) - $time; echo "{$label}: {$duration}s\n"; } test('preg_split+count', function() { $chars = preg_split('//u', TEST_STRING, -1, PREG_SPLIT_NO_EMPTY); $len = count($chars); for ($i = 0; $i < $len; $i++) { $char = $chars[$i]; // use $char } }); test('preg_split+foreach', function() { $chars = preg_split('//u', TEST_STRING, -1, PREG_SPLIT_NO_EMPTY); foreach ($chars as $char) { // use $char } }); test('preg_match_all', function() { if (preg_match_all('/./u', TEST_STRING, $matches)) { foreach ($matches[0] as $char) { // use $char } } });