(PECL ibm_db2 >= 1.0.0)
db2_field_display_size — Returns the maximum number of bytes required to display a column
Returns the maximum number of bytes required to display a column in a result set.
stmtcolumn
Returns an integer value with the maximum number of bytes required to
display the specified column. If the column does not exist in the result
set, db2_field_display_size() returns false.