How can PHP developers ensure proper handling of special characters like the Euro symbol across different parts of a web application?

Special characters like the Euro symbol can be properly handled in a web application by ensuring consistent character encoding throughout the application, using htmlentities() or htmlspecialchars() functions to encode special characters before displaying them on a webpage, and setting the appropriate character encoding in the HTML document. 

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

// Encode the Euro symbol using htmlentities() before displaying it
$euroSymbol = htmlentities('€', ENT_QUOTES, 'UTF-8');

// Display the Euro symbol on the webpage
echo "Price: $euroSymbol 10";
?>

Keywords

PHP special characters Euro symbol encoding htmlentities

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