(PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8)
pg_update — 更新表
$connection
,$table_name
,$data
,$condition
,$options
= PGSQL_DML_EXEC
pg_update() 用 condition
作為條件查詢數(shù)據(jù)庫,用 data
中的數(shù)據(jù)更新符合條件的記錄。如果指定了 options
,則 pg_convert() 會按照指定選項作用到 data
上。
此函數(shù)是實驗性的。此函數(shù)的表象,包括名稱及其相關文檔都可能在未來的 PHP 發(fā)布版本中未通知就被修改。使用本函數(shù)風險自擔。
connection
PostgreSQL database connection resource.
table_name
Name of the table into which to update rows.
data
An array whose keys are field names in the table table_name
,
and whose values are what matched rows are to be updated to.
condition
An array whose keys are field names in the table table_name
,
and whose values are the conditions that a row must meet to be updated.
options
Any number of PGSQL_CONV_OPTS
,
PGSQL_DML_NO_CONV
,
PGSQL_DML_EXEC
or
PGSQL_DML_STRING
combined. If PGSQL_DML_STRING
is part of the
options
then query string is returned.
成功時返回 true
, 或者在失敗時返回 false
。 Returns string if PGSQL_DML_STRING
is passed
via options
.
示例 #1 pg_update() example
<?php
$db = pg_connect('dbname=foo');
$data = array('field1'=>'AA', 'field2'=>'BB');
// This is safe, since $_POST is converted automatically
$res = pg_update($db, 'post_log', $_POST, $data);
if ($res) {
echo "Data is updated: $res\n";
} else {
echo "User must have sent wrong inputs\n";
}
?>