What steps should be taken to ensure that PHP scripts, HTML, database, and data transfer between PHP and the database are all set to UTF-8 encoding?

To ensure that PHP scripts, HTML, database, and data transfer between PHP and the database are all set to UTF-8 encoding, you should set the character encoding to UTF-8 in the following places: 1. Set the meta tag in HTML to UTF-8. 2. Set the connection charset in PHP to UTF-8 when connecting to the database. 3. Set the database, tables, and columns to use UTF-8 encoding. 

// Set UTF-8 encoding in HTML
<meta charset="UTF-8">

// Set UTF-8 encoding in PHP for database connection
$mysqli = new mysqli("localhost", "username", "password", "database");
$mysqli->set_charset("utf8");

// Set database, tables, and columns to use UTF-8 encoding
ALTER DATABASE database_name CHARACTER SET utf8 COLLATE utf8_general_ci;
ALTER TABLE table_name CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci;
ALTER TABLE table_name MODIFY column_name VARCHAR(255) CHARACTER SET utf8;

Keywords

PHP UTF-8 encoding HTML database data transfer

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