Php/docs/function.ingres-field-type

• PHP Manual
• Ingres 函数
• Get the type of a field in a query result

ingres_field_type

(PHP 4 >= 4.0.2, PHP 5 < 5.1.0, PECL ingres >= 1.0.0)

ingres_field_type — Get the type of a field in a query result

说明

ingres_field_type ( resource $result , int $index ) : string|false

Get the type of a field in a query result.

Note:

Related Configurations

See ingres.array_index_start in Runtime Configuration

参数

result

The query result identifier

index

index is the field whose type will be retrieved.

The possible values of index depend upon the value of ingres.array_index_start. If ingres.array_index_start is 1 (the default) then index must be between 1 and the value returned by ingres_num_fields(). If ingres.array_index_start is 0 then index must be between 0 and ingres_num_fields() - 1.

返回值

ingres_field_type() returns the type of a field in a query result 或者在失败时返回 false. Examples of types returned are IIAPI_BYTE_TYPE, IIAPI_CHA_TYPE, IIAPI_DTE_TYPE, IIAPI_FLT_TYPE, IIAPI_INT_TYPE, IIAPI_VCH_TYPE. Some of these types can map to more than one SQL type depending on the length of the field (see ingres_field_length()). For example IIAPI_FLT_TYPE can be a float4 or a float8. For detailed information, see the Ingres OpenAPI User Guide, Appendix "Data Types" in the Ingres documentation.

参见

• ingres_query() - Send an SQL query to Ingres
• ingres_fetch_array() - Fetch a row of result into an array
• ingres_fetch_assoc() - Fetch a row of result into an associative array
• ingres_fetch_object() - Fetch a row of result into an object
• ingres_fetch_row() - Fetch a row of result into an enumerated array