(PHP 3, PHP 4, PHP 5 <= 5.1.0RC1)
Returns the size of the Oracle column column on the cursor cursor. Column 0 is the first column.
ora_columnsize (probably) returns the number of bytes per row/column. If you want the precision and scale for NUMBER columns, have a look at the oracle system database "user_tab_columns". It shows some other usefull information too.