(PHP 5 >= 5.1.0, PHP 7, PHP 8)
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 in the
given result instance.
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.
注意:
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.
resultPgSql\Result 实例，由 pg_query()、pg_query_params() 或者 pg_execute()（等）返回。
fieldField number, starting from 0.
The OID of the field's base type.
| 版本 | 说明 |
|---|---|
| 8.1.0 |
现在 result 参数接受 PgSql\Result
实例，之前接受 资源(resource)。
|
示例 #1 Getting information about fields
<?php
$dbconn = pg_connect("dbname=publisher") or die("Could not connect");
// Assume 'title' is a varchar type
$res = pg_query($dbconn, "select title from authors where author = 'Orwell'");
echo "Title field type OID: ", pg_field_type_oid($res, 0);
?>
以上例程会输出：
Title field type OID: 1043