带有Perl CGI的复选框 [英] Checkboxes with Perl CGI

问题描述

对不起，如果我的问题太简单，我刚刚开始与CGI ...
所以我有一个相同的名称的复选框。示例HTML：

Sorry if my question is too simple, I am just starting out with CGI... So I have a bunch of checkboxes with the same name. Sample HTML:

<form action="/cgi-bin/checkbox.cgi" method="POST">
<input name="Loc_opt" value="Loc_1" type="checkbox">Option 1<br>
<input name="Loc_opt" value="Loc_2" type="checkbox">Option 2<br>
<input name="Loc_opt" value="Loc_3" type="checkbox">Option 3<br>
<input type="submit" value="Submit">
</form>

我需要找出哪些是使用Perl CGI检查。我在checkbox.cgi中有以下内容：

I need to find out which of them are checked using Perl CGI. I have the following in checkbox.cgi:

print "Content-type:text/html\r\n\r\n";
local ($buffer, @pairs, $pair, $name, $value, %FORM);
    # Read in text
    $ENV{'REQUEST_METHOD'} =~ tr/a-z/A-Z/;
    if ($ENV{'REQUEST_METHOD'} eq "POST")
    {
    read(STDIN, $buffer, $ENV{'CONTENT_LENGTH'});
    }else {
    $buffer = $ENV{'QUERY_STRING'};
    }
    # Split information into name/value pairs
    @pairs = split(/&/, $buffer);
    foreach $pair (@pairs)
    {
    ($name, $value) = split(/=/, $pair);
    $value =~ tr/+/ /;
    $value =~ s/%(..)/pack("C", hex($1))/eg;
    $FORM{$name} = $value;
    }

现在我应该怎么打印， ？

What should I do to now print, say, the values of the selected checkboxes?

推荐答案

如果您有多个具有相同名称的表单元素，您需要将param CGI101 ：

You need to set the param() result into an array if you have multiple form elements with the same name.From CGI101:

my @colors = param('color');
foreach my $color (@colors) {
    print "You picked $color.<br>\n";
}

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