(PHP 4 >= 4.0.6, PHP 5)
fbsql_field_len — Returns the length of the specified field
$result
   [, int $field_offset
  ] )Returns the length of the specified field.
result
     A result pointer returned by fbsql_list_fields().
field_offset
     The numerical offset of the field. The field index starts at 0.
Returns the length of the specified field.