I've never worked with php so I may be talking rubbish but does it understand HTML characters? For instance in HTML the á is represented by á so maybe 'Cádiz' would work. If this does work then click here for a list of special characters in HTML.
Fujitsu Lifebook P727 laptop review
Microsoft Paint set to die after 32 years
Mac power user tips and hidden tricks
Comment désactiver la saisie intuitive et paramétrer votre clavier ?