pg_delete
(PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8)
pg_delete — 刪除記錄
說明
resource
$connection,string
$table_name,array
$assoc_array,int
$options = PGSQL_DML_EXEC): mixed
pg_delete() 刪除符合條件的記錄，條件在 assoc_array 中以 field=>value 格式給出。如果指定了 option，則 pg_convert() 按照該選項作用於 assoc_array 之上。
參數
-
connection -
PostgreSQL database connection resource.
-
table_name -
Name of the table from which to delete rows.
-
assoc_array -
An array whose keys are field names in the table
table_name, and whose values are the values of those fields that are to be deleted. -
options -
Any number of
PGSQL_CONV_FORCE_NULL,PGSQL_DML_NO_CONV,PGSQL_DML_EXECorPGSQL_DML_STRINGcombined. IfPGSQL_DML_STRINGis part of theoptionsthen query string is returned.
返回值
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.
範例
示例 #1 pg_delete() 例子
<?php
$db = pg_connect('dbname=foo');
// This is safe, since $_POST is converted automatically
$res = pg_delete($db, 'post_log', $_POST);
if ($res) {
echo "POST data is deleted: $res\n";
} else {
echo "User must have sent wrong inputs\n";
}
?>
此函式是實驗性的。此函式的表象，包括名稱及其相關文件都可能在未來的 PHP 發佈版本中未通知就被修改。使用本函式風險自擔。