php - help converting timestamp string to readable time format

[Spevil]

I have a record called \[code\]Time\[/code\] with the following date string: \[code\]20100902040003\[/code\] in the input file. I need some php help to convert this to something more readable such as this format: \[code\]2010-09-02 04:00:03\[/code\]and would like to format it as I print out the table data.