Duncan questions

Duncan answers

• PHP PDOException: "SQLSTATE[HY093]: Invalid parameter number"
• PHP pass additional parameters to callback function
• "FirstName" and "LastName" store in database USER or USER_PROFILE table?
• Differences between Perl and PHP [closed]
• How do I print a hash structure in Perl?
• Where can I obtain a list of UNIX system calls?
• How to design Models the correct way: Object-oriented or "Package"-oriented?