Parameter | Description |
default_nonExistent | The value to return if the field specified in field_name does not exist. The type of this parameter depends on the particular method. |
default_empty | The value to return if the field specified in field_name has no value (is empty or null). The type of this parameter depends on the particular method. |
default_invalid | The value to return if the field specified in field_name cannot be cast to the type requested or is otherwise invalid (e.g. contains binary escape codes). The type of this parameter depends on the particular method. Note that all types can be cast to a string, however, the opposite might not be possible. For example a string can be only be successfully cast to a float if it contains a valid float number, e.g. 1.0. |