如何在POST后检索下拉列表的文本？ [英] How to retrieve the text of a drop down list after a POST?

问题描述

你好，


< SELECT name =" f_hello">

< OPTION value = ''H''> Hello< / OPTION>"

< OPTION value =''G''> Good-Bye< / OPTION>"

< / SELECT>


在上面的例子中，我可以轻松检索f_hello变量，它将在POST后包含H或G
。但我怎么能找回你好的或者

Good-Bye字符串？


谢谢，

Denis

解决方案

Zorro写道：

大家好，

< SELECT name =" f_hello">
< OPTION value =''H ''> Hello< / OPTION>"
< OPTION value =''G''> Good-Bye< / OPTION>"
< / SELECT>
<在上面的例子中，我可以很容易地检索f_hello变量，它将在POST后包含H或G。但我怎么能找回你好的或者再见字符串？

谢谢你，
丹尼斯

你不能自动。你必须将字符串本身作为值传递给它，或者在php处理页面上使用查找。例如：


< SELECT name =" f_hello">

< OPTION value =''Hello''> Hello< / OPTION> ;"

< OPTION value =''Good-Bye''> Good-Bye< / OPTION>"

< / SELECT>

或者您也可以按照自己的方式保留HTML并按照以下方式执行
：

myvar =（

_POST [''f_hello''] ==''G''）？''再见''：''你好'';


以上代码只是查看返回的值是否为G，如果返回再见则为

。否则返回Hello。如果你有很多价值（超过两个），你可以使用像

这样的开关盒结构，所以：


switch（

Hello guys,

<SELECT name = "f_hello">
<OPTION value = ''H''>Hello</OPTION>"
<OPTION value = ''G''>Good-Bye</OPTION>"
</SELECT>

In the case above, I can easily retrieve the f_hello variable which will
containts H or G after a POST. But how could I retrieve the "Hello" or
"Good-Bye" string?

Thank you,
Denis

解决方案

Zorro wrote:

Hello guys,

<SELECT name = "f_hello">
<OPTION value = ''H''>Hello</OPTION>"
<OPTION value = ''G''>Good-Bye</OPTION>"
</SELECT>

In the case above, I can easily retrieve the f_hello variable which will
containts H or G after a POST. But how could I retrieve the "Hello" or
"Good-Bye" string?

Thank you,
Denis

You can''t automatically. You have to either pass the string itself as
the value or use a lookup on the php processing page. For example:

<SELECT name = "f_hello">
<OPTION value = ''Hello''>Hello</OPTION>"
<OPTION value = ''Good-Bye''>Good-Bye</OPTION>"
</SELECT>

Or alternatively you can leave the HTML the way you had it and do
something like this:

myvar = (

_POST[''f_hello'']==''G'')?''Good-Bye'':''Hello'';

The above code simply looks to see if the returned value was a "G", and
if so returns "Good-Bye". Otherwise it returns "Hello". If you have
many values (more than two) you can use a switch case structure like
so:

switch (

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