Description
int 
ibase_timefmt ( string format [, int columntype] )
     Sets the format of timestamp, date or time type columns returned
     from queries. Internally, the columns are formatted by c-function
     strftime(), so refer to its documentation regarding to the format
     of the string. columntype is one of the
     constants IBASE_TIMESTAMP, IBASE_DATE and IBASE_TIME. If omitted,
     defaults to IBASE_TIMESTAMP for backwards compatibility.
    
     
    
     You can set defaults for these formats with the PHP configuration
     directives ibase.timestampformat, ibase.dateformat and ibase.timeformat.
    
Note: 
      This function has been removed from PHP 5, use ini_set() instead.