通过iframe，php传递会话变量 [英] Passing sessions variables through an iframe, php
问题描述
第一次到网站的定时器，不是一个过度经验的PHP程序员在这里：）
我有一个问题，我在一个网站内使用iframe，它试图在里面使用会话变量，首先我试图显示会话变量，以确保它们可以从iframe中访问：
echo productcheck会话。$ _ SESSION ['productcheck']。
;
echoproductcheck1 session。$ _ SESSION ['productcheck1']。
;
echoproductcheck2会话。$ _ SESSION ['productcheck2']。
;
echoproductcheck3会话。$ _ SESSION ['productcheck3']。
;
这只是显示产品检查会话，每个会话后都没有任何内容，我将session变量设置为：
$ _ SESSION ['productcheck'] = $ productBox;
$ productBox是来自网址的GET：
echo< iframe src = \homeview.php？productBox = $ product1 \name = \\FRAMENAME \width = \\594 \ height = \450 \scrolling = \No \id = \\FRAMENAME \allowautotransparency = \true \>< / iframe>;
奇怪的是，如果我只是从URL中获取$ productBox变量并使用该变量，那么代码将工作，只有当我将它存储在会话中时变得混乱。我想检索第二个$ productBox并将其分配给会话var productcheck1等等。不幸的是，我必须一次只接受一个变种，否则我只能通过所有4种产品，而不用担心会话。
也许我正在做这么远太复杂了，任何帮助都将非常感谢！
您必须在两个脚本中使用session_start一个设置值（并且可能打印< iframe>元素？）和生成iframe内容的脚本。
例如。 外部脚本
<？php // test.php
session_start（）;
$ _SESSION ['productcheck'] = array（）;
$ _SESSION ['productcheck'] [] ='A';
$ _SESSION ['productcheck'] [] ='B';
$ _SESSION ['productcheck'] [] ='C';
session_write_close（）; //可选
？>
< html>
< head>< title>会话测试< / title>< / head>
< body>
< div>会话测试< / div>
< iframe src =test2.php/>
< / body>
< / html>
以及iframe内容的脚本
<？php // test2.php
session_start（）;
？>
< html>
< head>< title> iframe session test< / title>< / head>
< body>
< div> （$ _SESSION ['productcheck']）&& is_array（$ _ SESSION ['productcheck']））{
foreach（$ _
） productcheck'] as $ pc）{
echo $ pc，< br /> \\\
;
}
}
？>
< / div>
< / body>
< / html>
First timer to the site, not an overly experienced php programmer here :)
I have a problem, i am using an iframe within a site which im attempting to use a session variable inside, firstly ive just been trying to display the session variable to make sure they are accessible from within the iframe:
echo "session of productcheck ".$_SESSION['productcheck']."
";
echo "session of productcheck1 ".$_SESSION['productcheck1']."
";
echo "session of productcheck2 ".$_SESSION['productcheck2']."
";
echo "session of productcheck3 ".$_SESSION['productcheck3']."
";
this just shows "session of product check" with nothing after each one, I set the session variable as such:
$_SESSION['productcheck'] = $productBox;
the $productBox is a GET from the URL:
echo " <iframe src=\"homeview.php?productBox=$product1\" name=\"FRAMENAME\" width=\"594\" height=\"450\" scrolling=\"No\" id=\"FRAMENAME\" allowautotransparency=\"true\" > </iframe >";
What's strange is if i just take the $productBox variable retrieved from the URL and use that then the code works, its only when i store it in a session variable that it gets confused. I want to retrieve a second $productBox and assign it to session var productcheck1 and so forth down the line. Unfortunately, i have to take one var in at a time, otherwise i could just pass all 4 products and not worry about the sessions.
Perhaps I'm making this far too complicated, any help would be much appreciated Thank you!!
You have to use session_start() in both scripts, the one setting the values (and presumably printing the <iframe>-element?) and the script that produces the contents for the iframe.
e.g. the "outer" script
<?php // test.php
session_start();
$_SESSION['productcheck'] = array();
$_SESSION['productcheck'][] = 'A';
$_SESSION['productcheck'][] = 'B';
$_SESSION['productcheck'][] = 'C';
session_write_close(); // optional
?>
<html>
<head><title>session test</title></head>
<body>
<div>session test</div>
<iframe src="test2.php" />
</body>
</html>
and the script for the iframe content
<?php // test2.php
session_start();
?>
<html>
<head><title>iframe session test</title></head>
<body>
<div>
<?php
if ( isset($_SESSION['productcheck']) && is_array($_SESSION['productcheck']) ) {
foreach( $_SESSION['productcheck'] as $pc ) {
echo $pc, "<br />\n";
}
}
?>
</div>
</body>
</html>
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