What are the best practices for handling special characters in URLs when passing variables in PHP?

Special characters in URLs can cause issues when passing variables in PHP, as they can be misinterpreted or cause errors. To handle special characters properly, it is recommended to use the urlencode() function to encode the variables before passing them in the URL, and then use urldecode() to decode them when retrieving the variables in your PHP script. 

// Encoding the variable before passing it in the URL
$variable = "special characters here";
$encoded_variable = urlencode($variable);

// Passing the encoded variable in the URL
$url = "example.com/script.php?var=" . $encoded_variable;

// Decoding the variable in the PHP script
$decoded_variable = urldecode($_GET['var']);

Keywords

URL encoding htmlspecialchars urlencode rawurlencode special characters

Related Questions