msql_field_flags
(PHP 3 >= 3.0.7, PHP 4, PHP 5)
msql_field_flags -- Get field flags
说明
string
msql_field_flags ( resource result, int field_offset )
msql_field_flags() returns the field flags of
the specified field.
返回值
Returns a string containing the field flags of the specified key.
This can be: primary key not null,
not null, primary key,
unique not null or unique.