PHP5中文手册·Returns the name or oid of the tables field -- 追寻梦想＞编程乐园＞PHP 编程

说明

mixed pg_field_table ( resource $result , int $field_number [, bool $oid_only ] )

pg_field_table() returns the name of the table that field belongs to, or the table's oid if oid_only is TRUE.

参数

result: PostgreSQL query result resource, returned by pg_query(), pg_query_params() or pg_execute() (among others).
field_number: Field number, starting from 0.
oid_only: By default the tables name that field belongs to is returned but if oid_only is set to TRUE, then the oid will instead be returned.

返回值

On success either the fields table name or oid. Or, FALSE on failure.

范例

Example#1 Getting table information about a field


<?php
$dbconn = pg_connect("dbname=publisher") or die("Could not connect");

$res = pg_query($dbconn, "SELECT bar FROM foo");

echo pg_field_table($res, 0);
echo pg_field_table($res, 0, true);

$res = pg_query($dbconn, "SELECT version()");
var_dump(pg_field_table($res, 0));
?>

上例的输出类似于：

foo
14379580

bool(false)

注释

Note: Returning the oid is much faster than returning the table name because fetching the table name requires a query to the database system table.


	PHP5中文手册 pg_field_size pg_field_type_oid PostgreSQL PHP Manual pg_field_table (PHP 5 >= 5.2.0) pg_field_table — Returns the name or oid of the tables field 说明 mixed pg_field_table ( resource `$result` , int `$field_number` [, bool `$oid_only` ] ) pg_field_table() returns the name of the table that field belongs to, or the table's oid if `oid_only` is `TRUE`. 参数 `result` PostgreSQL query result resource, returned by pg_query(), pg_query_params() or pg_execute() (among others). `field_number` Field number, starting from 0. `oid_only` By default the tables name that field belongs to is returned but if `oid_only` is set to `TRUE`, then the oid will instead be returned. 返回值 On success either the fields table name or oid. Or, `FALSE` on failure. 范例 Example#1 Getting table information about a field `<?php $dbconn = pg_connect("dbname=publisher") or die("Could not connect"); $res = pg_query($dbconn, "SELECT bar FROM foo"); echo pg_field_table($res, 0); echo pg_field_table($res, 0, true); $res = pg_query($dbconn, "SELECT version()"); var_dump(pg_field_table($res, 0)); ?>` 上例的输出类似于： foo 14379580 bool(false) 注释 Note: Returning the oid is much faster than returning the table name because fetching the table name requires a query to the database system table. 参见 pg_field_name() pg_field_type() pg_field_size pg_field_type_oid PostgreSQL PHP Manual

pg_field_table

说明

参数

返回值

范例

注释

参见