Chapter 9. Form

Section 9.0.  Introduction

Recipe 9.1.  Processing Form Input

Recipe 9.2.  Validating Form Input: Required Fields

Recipe 9.3.  Validating Form Input: Numbers

Recipe 9.4.  Validating Form Input: Email Addresses

Recipe 9.5.  Validating Form Input: Drop-Down Menus

Recipe 9.6.  Validating Form Input: Radio Buttons

Recipe 9.7.  Validating Form Input: Checkboxes

Recipe 9.8.  Validating Form Input: Dates and Times

Recipe 9.9.  Validating Form Input: Credit Cards

Recipe 9.10.  Preventing Cross-Site Scripting

Recipe 9.11.  Working with Multipage Forms

Recipe 9.12.  Redisplaying Forms with Inline Error Messages

Recipe 9.13.  Guarding Against Multiple Submission of the Same Form

Recipe 9.14.  Processing Uploaded Files

Recipe 9.15.  Preventing Global Variable Injection

Recipe 9.16.  Handling Remote Variables with Periods in Their Names

Recipe 9.17.  Using Form Elements with Multiple Options

Recipe 9.18.  Creating Drop-Down Menus Based on the Current Date