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I'm trying to do something like this:

mysql_query("
  UPDATE name SET money = money + 1;
  UPDATE surname SET money = money + 1;
"); 

but it doesn't work.

It's just example, but my question is: How can I put two or even more queries in one mysql_query?

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http://docs.php.net/mysql_query says:

mysql_query() sends a unique query (multiple queries are not supported) to the currently active database on the server that's associated with the specified link_identifier .

But you might be interested in mysqli::multi_query:

Executes one or multiple queries which are concatenated by a semicolon.

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