PHP:pg_field_type_oid()的用法_PostgreSQL函数

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(PHP 5 >= 5.1.0)

pg_field_type_oid — Returns the type ID (OID) for the corresponding field number

pg_field_type_oid() returns an integer containing the OID of the base type of the given field_number in the given PostgreSQL result resource.

You can get more information about the field type by querying PostgreSQL&#;s pg_type system table using the OID obtained with this function. The PostgreSQL format_type() function will convert a type OID into an SQL standard type name.

Note:

If the field uses a PostgreSQL domain (rather than a basic type), it is the OID of the domain&#;s underlying type that is returned, rather than the OID of the domain itself.

result

PostgreSQL query result resource, returned by pg_query(), pg_query_params() or pg_execute() (among others).

Field number, starting from 0.

The OID of the field&#;s base type. FALSE is returned on error.

Example #1 Getting information about fields

以上例程会输出：

pg_field_type() - 返回相应字段的类型名称 pg_field_prtlen() - 返回打印出来的长度 pg_field_name() - 返回字段的名字

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