How can PHP scripts ensure consistent character encoding across databases, HTTP headers, and PHP files?

To ensure consistent character encoding across databases, HTTP headers, and PHP files, PHP scripts can set the character encoding using the header() function for HTTP headers, specify the character encoding in the database connection, and use the mb_internal_encoding() function to set the internal character encoding for PHP files. 

// Set character encoding for HTTP headers
header('Content-Type: text/html; charset=UTF-8');

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

// Set internal character encoding for PHP files
mb_internal_encoding("UTF-8");

Keywords

Character encoding PHP scripts databases HTTP headers consistency.

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