Knowledge Base Contributions

Below is a list of the knowledge base entries that Imran Aziz has contributed to:

• How long a variable resides in memory, how can i remove it?
  

• what is phtml? in them, query is executed w/o dbname/port etc of MySQL? while in php they are must?
  

• How can I use Global Variables? So they can be accessed between two php files?
  

• why do $file keeps being "none" when "$file_name" contains the right value ?