CodeIgniter Docs

• Query Builder Class
• Form Validation
• Email Class
• Alternate PHP Syntax for View Files
• Pagination

CodeIgniter Articles

• Salamone — CI Subscriptions Sites
• Upton, David — Codeigniter for Rapid Php Application Development
• Cleaning Up Your CodeIgniter Nice page layout. Conternt just gives very simple ideas for thinner controllers like putting validation rules in an external file
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