当按下后退按钮时，重新提交表格 [英] Form is resubmitted when the back button is pressed

问题描述

我使用HTML和PHP制作的联系表存在问题.当用户单击 submit 时，它将重定向到用户收到消息的另一页，您的消息已发送".然后，它会自动重定向到主页.但是，当用户单击 back 按钮时，该消息再次出现，并且重新提交了表单.因此，我收到了两条相同的邮件发送到我的电子邮件！

I have a problem with my contact form that I have made using HTML and PHP. When the user clicks submit it redirects to another page where the user gets the message, "Your message has been sent". It then automatically redirects to the home page. But when the user clicks the back button, the message appears again and the form is resubmitted. Consequently I get two identical messages sent to my email!

我该如何解决?

推荐答案

看看防止表单重新提交和防止后退"按钮显示POST确认警报，您将找到有用的信息，该信息如何进行重定向，当单击后退"按钮时，该重定向不会触发重新提交表单.

Take a look at Preventing form resubmission and Prevent Back button from showing POST confirmation alert where you will find useful info how to make redirects which won't trigger form re-submission when the Back button is clicked.

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