utf8mb4_unicode_ci php
$dbh = new PDO("mysql:host=$host;dbname=$db;charset=utf8"); This line set the charset but you have to have PHP 5.3.6 or higher - $dbh->setAttribute(PDO::MYSQL_ATTR_INIT_COMMAND, "SET NAMES 'utf8mb4' COLLATE 'utf8mb4_unicode_, Did you "get things right"? Yes, Except that I think that French accents are 'correctly' compared in utf8mb4_unicode_520_ci. Your two SELECTs will both to a full table scan, thereby be inefficient. The reason is that you are overriding
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 utf8mb4_unicode_ci php 相關參考資料
為什麼Mysql要設定用utf8mb4編碼utf8mb4_unicode_ci -網頁新知
當連線到MySQL 時候，程式(PHP)該怎麼設定呢？ 連線時把SET names utf8; 改成SET names utf8mb4;; mysqldump 另外加上--default-character-set=utf8mb4 ，可避免罕見字匯出錯誤. MYSQL 建立新資料庫時，直接把編碼設定成utf8mb4_unicode_ci 的方式：. CREATE DATABASE `google... http://blog.webgolds.com Php + Mysql (UTF-8 ) some characters are still bug - Stack Overflow
$dbh = new PDO("mysql:host=$host;dbname=$db;charset=utf8"); This line set the charset but you have to have PHP 5.3.6 or higher - $dbh->setAttribute(PDO::MYSQL_ATTR_INIT_COMMAND, "SE... https://stackoverflow.com php - utf8mb4_unicode_ci vs utf8mb4_bin - Stack Overflow
Did you "get things right"? Yes, Except that I think that French accents are 'correctly' compared in utf8mb4_unicode_520_ci. Your two SELECTs will both to a full table scan, thereby... https://stackoverflow.com php - What does collation utf8mb4_unicode_ci mean - Stack Overflow
utf8mb4_unicode_ci support full unicode in mysql databases. More information can be found here https://mathiasbynens.be/notes/mysql-utf8mb4. Basically there are many characters in Unicode that cant b... https://stackoverflow.com utf8mb4 編碼使用的一些紀錄- 資料庫相關討論於台灣PHP聯盟[ Taiwan ...
因為有個資料庫需要處理人名跟地名的罕見字，原本的utf8 不敷使用，所以開使用utf8mb4 來處理 在my.cnf 加入了下面設定 [code] [client] default-character-set=utf8mb4 [mysqld] character-set-server=utf8mb4 collation-server=utf8mb4_unicode_ci. https://twpug.net PHP: mysqli::set_charset - Manual - PHP.net
$connection->query("SET NAMES utf8mb4 COLLATE utf8mb4_unicode_ci"); character_set_client: utf8mb4 character_set_connection: utf8mb4 character_set_database: utf8mb4 character_set_filesyste... http://php.net How to convert MySQL collation from utf8mb4 to utf8 - Sanjay Bhowmick
So, the real process will be ALTER the database as well as each database table to change the CHARACTER SET. Using a PHP script I made the conversion and it worked perfectly. This is the PHP script wh... https://www.sanjaybhowmick.com MySQL full unicode support - MoodleDocs
Adjust the $CFG->dboptions Array in your config.php to make sure that Moodle uses the right Collation when connecting to the MySQL Server: $CFG->dboptions = array( … 'dbcollation' =>... https://docs.moodle.org Update PDO example - SET NAMES utf8mb4 · Issue #734 · codeguy ...
Laravel is also using this command: https://github.com/laravel/framework/blob/v5.4.14/src/Illuminate/Database/Connectors/MySqlConnector.php#L56. By default they do it like this: set names utf8mb4 col... https://github.com |