heron questions

• Can't figure out right SQL statement
• PHP Fetch data twice
• Generated background image with CSS or Canvas
• Python unicode encoding issue
• Setting MySQL timezone for session
• May I save user id inside $_SESSION variables?
• How to change NOW() timezone
• Fire function if visitor tries to close browser window by clicking "x" button
• Web based IDE solution [closed]
• PHP tidy removes <span>

heron answers