- Misspelling of Array key (case sensitive).
- If the variable comes from another script, check the script is 'include'd or 'require'd at least once;
- Did you really define/set the Array element?
- Did you unset the Array element somewhere before?
Software developers like to solve problems. If there are no problems available, they will create their own problems!
Joins all the items of an array arrDATA with string strSEPERATOR and returns as a string.
Use the htmlentities() function for simple sanitization and the HTML Purifier library for complex sanitization.
Take a patient look into this configuration script and your application will be up and running in less than 5 minutes.