What are common pitfalls when dealing with Umlaut/Charset problems in PHP?

When dealing with Umlaut/Charset problems in PHP, common pitfalls include not setting the correct character encoding, not properly sanitizing user input, and not using the appropriate functions for handling special characters. To solve these issues, make sure to set the character encoding to UTF-8, sanitize user input using functions like htmlspecialchars, and use functions like mb_convert_encoding for handling special characters. 

// Set the character encoding to UTF-8
header('Content-Type: text/html; charset=utf-8');

// Sanitize user input using htmlspecialchars
$userInput = htmlspecialchars($_POST['input']);

// Convert special characters using mb_convert_encoding
$convertedString = mb_convert_encoding($userInput, 'UTF-8', 'ISO-8859-1');

Keywords

Umlaut Charset PHP Encoding Multibyte

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