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HomeBackend DevelopmentPHP TutorialPHP模板和后台如何让下拉框的值在按钮后下拉框的值不变?

smarty模板:


    


回复讨论(解决方案)

后面的不出来 是什么意思? 详细描述逻辑过程。代码也没有贴全。



$smarty->assign("cbo_grade1",$_POST['cbo_grade1']);


$smarty->assign("cbo_grade1",$_POST['cbo_grade1']);
smarty貌似没有调到啊?我改成数组中的来源$smarty->assign("arr",$_POST['cbo_grade1']);
按了查找按钮他就只显示第一个字。。。。本来ID='GB1234'现在调回去就只出一个G了、、、

我突然想到为啥只有第一个出来了  {{foreach from=$arr item=h key=i}}

                 
                 {{/foreach}}
                
原因是   

$h[i] 

你的数组是什么格式? prinr_r($arr); 看看

$_POST['cbo_grade1']);
我现在好像确定了是将这个值传过去的时候{{foreach from=$arr item=h key=i}}
吧我的值拆分了。。   

我的数组有些全是数字有的有数字和字母,有点全是中午,我现在有3个下拉框,上面的那个 prinr_r($arr); 好像写错了吧。。。 print_r($arr); 才对。。

$_POST['cbo_grade1']) 等于你提交的值,是单个值。你确定能显示所有 option ?

我现在连将我选择的值$_POST['cbo_grade1']在重新传回下拉框都做不到。。还显示全部,我现在就想我选择的下拉框的值单击了按钮也能不变,就是将POST的值在传回去,不让下拉框为空就行、。。

smarty 专门提供有 html_options 模板函数来解决列表控件的相关操作
见  http://www.php100.com/manual/smarty/language.function.html.options.html

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