mysql_fetch_field

 object mysql_fetch_field ( resource $result [, int $field_offset = 0 ] ) 

説明

Returns an object containing field information. This function can be used to obtain information about fields in the provided query result.

戻り値

Returns an object containing field information. The properties of the object are: name - column name table - name of the table the column belongs to max_length - maximum length of the column not_null - 1 if the column cannot be NULL primary_key - 1 if the column is a primary key unique_key - 1 if the column is a unique key multiple_key - 1 if the column is a non-unique key numeric - 1 if the column is numeric blob - 1 if the column is a BLOB type - the type of the column unsigned - 1 if the column is unsigned zerofill - 1 if the column is zero-filled