PHPize Online / SQLize Online  /  SQLtest Online

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<?php $mysqli->set_charset('utf8mb4'); $mysqli->query("create table test (t varchar(255) character set utf8mb4)"); var_dump($mysqli->query("show create table test")->fetch_row()[1]); $mysqli->query("insert into test values ('test'), ('тест')"); var_dump($mysqli->query("select t, length(t) len from test")->fetch_all());
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