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I want to create my own RSS/XML feed. I fetch data from the database to display, but keep getting invalid character errors. If the string has an ampersand or other strange characters in it, the XML will be invalid.
I tried using urlencode and htmlentities, but these don’t capture all possible characters which need to be escaped. Does anyone know of a PHP function which will prepare a string for XML output?
htmlspecialchars should be enough. But don’t forget to set the 3rd parameter (charset) to the character set matching the string charset.