令人困惑的POST行为 - 做两次？ [英] Confusing POST behavior -- doing it twice?
问题描述
（先前在comp.lang.php上发布但未收到回复。在Dreamweaver论坛中交叉发布
）
我对什么感到困惑继续方法POST。这是我的代码概述
，草拟出来：
<？php
if（isset（$） _POST [''提交'']）&& $ _POST [''提交''] =="提交"）{
---做一堆东西---
if（isset（$ _ SESSION [''Error'']））unset（$ _ SESSION [''Error'']）;
if（strcmp（$ A， any）{
//验证邮政编码是否为数字且是五位数
如果（！is_numeric（$ _ POST（$ zip））strlen（$ _POST（$ zip））！= 5）然后{
$ _SESSION [''错误''] ="错误说明" ;;
标头（"位置：thisSite.php :);
}
}
}
header（" Location：anotherSite。 php :);
？>
......在表单说明中我有一个
< ？php if（isset（（$ _ SESSION [''Error'']））echo $ _SESSION [''Error''];？>
（注意：表单类型为POST）。
所以这是问题所在：
1 - 当我开始时，没有错误消息。
2 - 我故意输入一个糟糕的邮政编码并且有一个除any之外的值
并点击提交它。
3 - 而不是回到thisSite.php并显示错误消息，
它去了to anotherSite.php。
4 - 如果我然后点击浏览器上的后退箭头，它会在thisSite.php上显示错误
消息
似乎
1 - 在提交时它通过逻辑并设置错误。
2 - 它必须经过一秒钟时间，但这次采用
默认设置为any对于控制A等绕过zip
代码的逻辑，所以转到anotherSite.php。
请在这里帮助我。
雪莉
(posted previously on comp.lang.php but no response received. Cross-posted
in the dreamweaver forum)
I am confused about what goes on with method POST. Here is an overview of a
my code, sketching it out:
<?php
if (isset($_POST[''Submit'']) && $_POST[''Submit'']=="Submit") {
---Do a bunch of stuff---
if (isset($_SESSION[''Error''])) unset($_SESSION[''Error'']);
if (strcmp($A, "any") {
// Verify that a Zip code is numeric and is five digits
If (!is_numeric($_POST($zip)) strlen($_POST($zip)) != 5) then {
$_SESSION[''Error''] = "an error description";
header("Location: thisSite.php:);
}
}
}
header("Location: anotherSite.php:);
?>
...... in the form description I have an
<?php if (isset(($_SESSION[''Error''])) echo $_SESSION[''Error'']; ?>
(Note: The form is type POST).
So here is the problem:
1 - When I start, there is no error message.
2 - I deliberately put in a bad zip code and have a value other than "any"
in the A control and click to submit it.
3 - Instead of going back to thisSite.php and displaying the error message,
it goes to anotherSite.php.
4 - If I then hit the back arrow on the browser, it displays with the error
message on thisSite.php
It seems that
1 - on the submit it goes through the logic and sets the error.
2 - It then must be going through a second time, but this time taking on the
default setting of "any" for control A and so bypass the logic on the zip
code and so goes to anotherSite.php.
Please help me here.
Shelly
推荐答案
_POST [''提交'']）&&
_POST[''Submit'']) &&
_POST [''提交''] =="提交"）{
---做一堆东西---
if（isset（
_POST[''Submit'']=="Submit") {
---Do a bunch of stuff---
if (isset(
_SESSION [''错误'']））取消设置（
_SESSION[''Error''])) unset(
这篇关于令人困惑的POST行为 - 做两次？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
