php 此页面包含以下错误：第 1 行第 1 列错误：文档为空
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This page contains the following errors: error on line 1 at column 1: Document is empty
提问by Muzammil
Im unable to find out the solution , please help. below is the code. Thanks in advance
我无法找到解决方案，请帮助。下面是代码。提前致谢
<?php
if(isset($_POST['submit'])){
$name = $_POST['name'];
$Lname = $_POST['lastName'];
$num = $_POST['number'];
echo $name.$Lname.$num;
$xml = new SimpleXMLElement("<?xml version='1.0' encoding='UTF-8'?><Person></Person>");
Header('Content-type:text/xml');
$name = $xml->addChild('name',$name);
$Lname = $xml->addChild('LastName',$Lname);
$Number = $xml->addChild('Number',$num);
print($xml->asXML());
}
?>
<!DOCTYPE html>
<head>
<title>XML</title>
</head>
<body>
<form method="post" action="" enctype= multipart/form-data>
<input type="text" name="name" value="Name" required/>
<input type="text" name="lastName" value="LName" required/>
<input type="text" name="number" value="Number" required/>
<input type="submit" value="send" name="submit"/>
</form>
</body>
</html>
Im unable to find out the solution , please help. below is the code. Thanks in advance
我无法找到解决方案，请帮助。下面是代码。提前致谢
采纳答案by Shankar Damodaran
You need to wrap the <form>in the elsepart and remove the unneccesary echostatement.
您需要将 包裹<form>在else零件中并删除不必要的echo语句。
The working code..
工作代码..
<?php
if(isset($_POST['submit'])){
header('Content-type:text/xml');
$name = $_POST['name'];
$Lname = $_POST['lastName'];
$num = $_POST['number'];
//echo $name.$Lname.$num; //<---- Commented
$xml = new SimpleXMLElement("<?xml version='1.0' encoding='UTF-8'?><Person></Person>");
$name = $xml->addChild('name',$name);
$Lname = $xml->addChild('LastName',$Lname);
$Number = $xml->addChild('Number',$num);
print($xml->asXML());
}
else
{
?>
<!DOCTYPE html>
<head>
<title>XML</title>
</head>
<body>
<form method="post" action="" enctype= multipart/form-data>
<input type="text" name="name" value="Name" required/>
<input type="text" name="lastName" value="LName" required/>
<input type="text" name="number" value="Number" required/>
<input type="submit" value="send" name="submit"/>
</form>
</body>
</html>
<?php } ?>
OUTPUT :
OUTPUT :
<Person>
<name>Nameasdasd</name>
<LastName>LNameasdasd</LastName>
<Number>Number32424</Number>
</Person>
回答by user13500
You can not mix XML and HTML in that way. It invalidates the XML document.
您不能以这种方式混合 XML 和 HTML。它使 XML 文档无效。
Remove:
echo $name.$Lname.$num;Ref. prolog.This is what causes the error you witness.
Abort script on form data (or use an elseclause):
print($xml->asXML()); exit(0);Else you get data in trailing sectionof XML-document.
消除：
echo $name.$Lname.$num;参考 序言。这就是导致您目睹错误的原因。
中止表单数据脚本（或使用else子句）：
print($xml->asXML()); exit(0);否则，您将在XML 文档的尾随部分获取数据。
For valid HTML you also need to add a value for actionin the form. Quotes on attribute values are usually optional, but would advice consistency, thus also quote enctype.
对于有效的 HTML，您还需要在表单中为action添加一个值。属性值的引用通常是可选的，但会建议一致性，因此也引用enctype。
回答by Masoud
Before writing or printing your xml just clear your buffer in asp for example: Response.Clear(); I don't know its equivalent in php.
在编写或打印您的 xml 之前，只需清除 asp 中的缓冲区，例如：Response.Clear(); 我不知道它在 php 中的等价物。
回答by wild
<form method="post" action="" enctype= multipart/form-data>
replace it with
将其替换为
<form method="post" action="" enctype="multipart/form-data">
