How can developers ensure that their PHP code is properly handling UTF-8 characters?

Developers can ensure that their PHP code is properly handling UTF-8 characters by setting the appropriate character encoding, using functions like mb_internal_encoding() and mb_http_output(), and ensuring that all input and output is properly encoded and decoded using functions like mb_convert_encoding(). 

// Set internal encoding to UTF-8
mb_internal_encoding("UTF-8");

// Set HTTP output encoding to UTF-8
mb_http_output("UTF-8");

// Convert input data to UTF-8
$input = mb_convert_encoding($input, "UTF-8", "auto");

// Convert output data to UTF-8
$output = mb_convert_encoding($output, "UTF-8", "auto");

Keywords

UTF-8 character encoding mbstring htmlspecialchars htmlentities

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