将数据从HTML表单传递到PHP文件
[英]Passing data from an HTML form to PHP file
问题描述
Any help understanding why the below does not work would be a big help. 
任何有助于理解以下内容为何不起作用的帮助都会有很大帮助。 I don't understand why $var1 does not get the contents of bnum in the PHP file. 我不明白为什么$ var1不能在PHP文件中获取bnum的内容。
Thank Marc 感谢Marc
HTML form in file#1 文件＃1中的HTML表单
<html>
<body>
<form action="delete.php" method="post">
Please input building number to delete: <input type="text" name="bnum"><br>
<input type="submit">
</form>
</body>
</html>
Delete.php file Delete.php文件
<?php
echo $_POST["bnum"];
echo "<br>";
$var1 = $_post["bnum"];
echo "var1 = ";
echo $var1;
echo "<br>";
var_dump($_POST);
?>
Output 输出量
test
var1 =
array(1) { ["bnum"]=> string(4) "test" }
4 个解决方案
解决方案1
0 2013-12-02 02:11:54
$ _post与$ _POST不同...
$var1 = $_POST["bnum"];
解决方案2
0 2013-12-02 02:21:25
Your code works fine! 您的代码工作正常！
You entered "test" into the text field. 您在文本字段中输入了“测试”。 You echoed the posted text and you got line 1 of the output "test". 您回显了所发布的文本，并且得到了输出“ test”的第1行。 You echoed "Var =" string and you got "var =". 您回显了“ Var =”字符串，并且得到了“ var =”。 You requested string information and line 3 told you that it is 4 characters and it is "test". 您请求了字符串信息，第3行告诉您它是4个字符，它是“测试”。
This script would need to connect to a database to actually do something meaningful. 该脚本需要连接到数据库才能实际执行有意义的操作。 What are you trying to accomplish? 你想达到什么目的？
解决方案3
0 2013-12-02 02:35:27
$ _post的大字母..像这样$ _POST ['bnum']
解决方案4
0 2013-12-02 03:45:55
$_POST like $_GET , $_REQUEST , $_COOKIE and $_SESSION ( amongst others ), are known as "Superglobals" and must be in uppercase letters, no exception. $_POST像$_GET ， $_REQUEST ， $_COOKIE和$_SESSION （其中包括 ），被称为“超级全局” ，并且必须是大写字母， 也不例外。
<?php
echo $_POST["bnum"];
echo "<br>";
$var1 = $_post["bnum"]; // INVALID $_post must be in uppercase
echo "var1 = ";
echo $var1;
echo "<br>";
var_dump($_POST);
?>
Valid: 有效：
<?php
echo $_POST["bnum"];
echo "<br>";
$var1 = $_POST["bnum"]; // VALID
echo "var1 = ";
echo $var1;
echo "<br>";
var_dump($_POST);
?>
For the complete list of Superglobals and documentation, visit the PHP.net Website.
有关Superglobals和文档的完整列表，请访问PHP.net网站。 http://www.php.net/manual/en/language.variables.superglobals.php
http://www.php.net/manual/zh/language.variables.superglobals.php
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