了解自我参考表单 [英] Understanding Self Referencing forms

问题描述

我正在学习自引用表单。我已经读过嵌入 php 脚本中的 html 表单是自引用表单。我仍然无法选择这个概念。几乎我在 php 代码中看到的所有表单都是使用 html 构建的。是否有更具体的自引用表单，然后嵌入 php 脚本中的 html 表单？

解决方案

您可能是这样的意思：

<？php
if（count（$ _ POST））{
echo'您提交了字符串：'。$ _ POST ['string'];
}
？>
< form action =method =post>
< input type =textname =string>
<按钮类型=提交>提交！< /按钮>
< / form>


空操作属性会导致浏览器将其提交到与加载的URL相同的URL。通过 count（$ _ POST）我们检查表单是否已提交并采取相应措施。

I am trying to learn Self Referencing Forms. I have read that a html form embedded in a php script is a self referencing form. I am still unable to pick the concept. Almost all the forms that I see in php codes are built with html. Is there something more specific about Self Referencing forms then just html forms being embedded in php script?

解决方案

You probably mean something like this:

<?php
if (count($_POST)) {
echo 'You have submitted the string: '.$_POST['string'];
}
?>
<form action="" method="post">
<input type="text" name="string">
<button type="submit">Submit!</button>
</form>

The empty action attribute causes the browser to submit it to the same URL as the one that is loaded. Via count($_POST) we check whether the form was submitted and act accordingly.

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