Originariamente inviato da valetudo
Ti ringrazio per la risposta ma i manuali li ho letti tutti, ho fatto 10000000000000000000 prove ma continuo ad avere questo problema, scusa se sono alle prime armi
Non è questione di essere alle prime armi, è solo questione di leggere attentamente:

In PHP 5, MySQL non sarà più abilitato per default, e nè la libreria MySQL sarà allegata al PHP. Per maggiori dettagli sul perchè leggere: FAQ.
e nelle faq

4. PHP 5 no longer bundles MySQL client libraries, what does this mean to me? Can I still use MySQL with PHP? I try to use MySQL and get "function undefined" errors, what gives?

Yes. There will always be MySQL support in PHP of one kind or another. The only change in PHP 5 is that we are no longer bundling the client library itself. Some reasons in no particular order:

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This won't actually affect that many people. Unix users, at least the ones who know what they are doing, tend to always build PHP against their system's libmyqlclient library simply by adding the --with-mysql=/usr option when building PHP. Windows users may enable the extension php_mysql.dll inside php.ini. For more details, see the MySQL Reference for installation instructions. Also, be sure libmysql.dll is available to the systems PATH. For more details on how, read the FAQ on setting up the Windows systems PATH. Because libmysql.dll (and many other PHP related files) exist in the PHP folder, you'll want to add the PHP folder to your systems PATH.