Detailed error message?

Hey all. I'm having a difficult time adjusting my php.ini file to display detailed error messages in my local testing environment. For example, when a query returns an error, I do not get the line # where the error occurred or really any info other than: "Query not executed. Unknown column 'Array' in 'where clause'" How can I get a full error report; i.e. file where error occurred; the line number, etc. Thanks for any help, --Noah --