YD8877 questions

• When should I restart webrick and when should I not?
• Inserting redundant information into the database to prevent table joins? [closed]
• PHP possible header redirection exploit?
• PHP folder permissions problem
• Represent hierarchy in a JSON object
• Granting access to database without knowing the password
• What is the difference between socket.io client and socket.io server? Alternatives to socket.io?
• How do I learn Cognos by myself without data to work on?
• Double sorting an array in PHP
• Using non-standard font in web pages? [closed]

YD8877 answers