我如何用php替换SQL查询中的表名

Question

我如何用php替换另一个字符串或表名来代替此查询字符串中的表名

SELECT 
    Panel.Id as PanelId,Panel.Title as PanelTitle,Panel.Icon as PanelIcon,
    SubPanel.Id as SubPanelId,SubPanel.Title as SubPanelTitle,
    SubPanel.Icon as SubPanelIcon,SecurityAccess.Id as Access,SecurityAccess.Controller,
    SecurityAccess.Action
FROM Panel
INNER JOIN SubPanel
INNER JOIN SecurityAccess
WHERE 
Panel.Id > 0 AND SubPanel.Panel = Panel.Id AND SubPanel.Id = UsersAccess.Subpanel
and SubPanel.Id > 0
ORDER BY Panel._Order,SubPanel._Order 

例如：将“ Panel”替换为“ my_panel”

我不希望您更改我的字符串。 只需使用此字符串即可。

Answer 1

我希望这可以帮助你..

$sql = "SELECT 
            $table_1.Id as PanelId, $table_1.Title as PanelTitle, $table_1.Icon as PanelIcon,
            $table_2.Id as SubPanelId, $table_2.Title as SubPanelTitle,
            $table_2.Icon as SubPanelIcon, $table_3.Id as Access, $table_3.Controller,
            $table_3.Action
        FROM $table_1
        INNER JOIN $table_2
        INNER JOIN $table_3
        WHERE 
        $table_1.Id > 0 AND $table_2.Panel = $table_1.Id AND $table_2.Id = UsersAccess.Subpanel
        and $table_2.Id > 0
        ORDER BY $table_1._Order, $table_2._Order";

对于您当前的查询，它将是..

$table_1 = "Panel";
$table_2 = "SubPanel";
$table_3 = "SecurityAccess";

如果$ table_ vars是用户输入，则在进行查询之前请小心转义它们。