Ubuntu Unleashed

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validation, HTML form input

values

     array elements

     dereferencing return values

     passing by

     true/false

var_dump( ) function

variable scope, functions

variable variables

variables

     appending

     assigning

     case-sensitivity

    global

         superglobals

     heredoc

     invalid characters

     isset( ) function

     register_globals and

     scope

     substitution

     this (OOP)

     types

     variable variables

version_compare( ) function

virtual( ) function