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(PHP 5 >= 5.1.0)
pg_field_type_oid — Returns the type ID (OID) for the corresponding field number
说明 int pg_field_type_oid ( resource $result , int $field_number )pg_field_type_oid() returns an integer containing the OID of the base type of the given field_number in the given PostgreSQL result resource.
You can get more information about the field type by querying PostgreSQLs pg_type system table using the OID obtained with this function. The PostgreSQL format_type() function will convert a type OID into an SQL standard type name.
Note:
If the field uses a PostgreSQL domain (rather than a basic type), it is the OID of the domains underlying type that is returned, rather than the OID of the domain itself.
参数result
PostgreSQL query result resource, returned by pg_query(), pg_query_params() or pg_execute() (among others).
field_numberField number, starting from 0.
返回值The OID of the fields base type. FALSE is returned on error.
范例
Example #1 Getting information about fields
<?php$dbconn=pg_connect("dbname=publisher")ordie("Couldnotconnect");//Assume'title'isavarchartype$res=pg_query($dbconn,"selecttitlefromauthorswhereauthor='Orwell'");echo"TitlefieldtypeOID:",pg_field_type_oid($res,0);?>以上例程会输出:
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