消息“未找到错误”的未捕获异常“ DOMException” [英] Uncaught exception 'DOMException' with message 'Not Found Error'
问题描述
基本上，我正在为CMS写一个模板系统，我希望有一个模块化的结构，其中涉及到人们在其中放置标签的情况，例如：
Bascially I'm writing a templating system for my CMS and I want to have a modular structure which involves people putting in tags like:
<模块名称= news /> 或< include name = anotherTemplateFile /> 在我的php中，并替换为动态html。
<module name="news" /> or <include name="anotherTemplateFile" /> which I then want to find in my php and replace with dynamic html.
此处有人将我指向DOMDocument，但我已经遇到了问题。
Someone on here pointed me towards DOMDocument, but I've already come across a problem.
我试图在模板中找到所有< include /> 标记，并用一些简单的html替换它们。这是我的模板代码：
I'm trying to find all <include /> tags in my template and replace them with some simple html. Here is my template code:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>CMS</title>
<include name="head" />
</head>
<body>
<include name="header" />
<include name="content" />
<include name="footer" />
</body>
</html>
这是我的PHP：
$template = new DOMDocument();
$template->load("template/template.tpl");
foreach( $template->getElementsByTagName("include") as $include ) {
$element = '<input type="text" value="'.print_r($include, true).'" />';
$output = $template->createTextNode($element);
$template->replaceChild($output, $include);
}
echo $template->saveHTML();
现在，我收到致命错误未捕获的异常'DOMException'，消息为'找不到错误'。
Now, I get the fatal error Uncaught exception 'DOMException' with message 'Not Found Error'.
我已经查过了，这似乎是因为我的< include /> 标记不一定是 $ template 的直接子代，而不替换它们。
I've looked this up and it seems to be that because my <include /> tags aren't necessarily DIRECT children of $template its not replacing them.
我如何独立于血统来替换它们？
How can I replace them independently of descent?
谢谢
汤姆
编辑
基本上我有各种各样的想法。如果我为PHP做类似的事情，我会看到它正在尝试做我想做的事情：
Basically I had a brainwave of sorts. If I do something like this for my PHP I see its trying to do what I want it to do:
$template = new DOMDocument();
$template->load("template/template.tpl");
foreach( $template->getElementsByTagName("include") as $include ) {
$element = '<input type="text" value="'.print_r($include, true).'" />';
$output = $template->createTextNode($element);
// this line is different:
$include->parentNode->replaceChild($output, $include);
}
echo $template->saveHTML();
不过，它似乎只改变了< body> ...当我有3时：：/
However it only seems to change 1 occurence in the <body> of my HTML... when I have 3. :/
推荐答案
这是您的问题DOMDocument-> load，尝试
This is a problem with your DOMDocument->load, try
$template->loadHTMLFile("template/template.tpl");
但是您可能需要给它加上.html扩展名。
But you may need to give it a .html extension.
这正在寻找html或xml文件。另外，每当您将DOMDocument与html一起使用时，在加载调用之前使用 libxml_use_internal_errors（true）; 是一个好主意。
this is looking for a html or an xml file. also, whenever you are using DOMDocument with html it is a good idea to use libxml_use_internal_errors(true); before the load call.
好的工作方式：
foreach( $template->getElementsByTagName("include") as $include ) {
if ($include->hasAttributes()) {
$includes[] = $include;
}
//var_dump($includes);
}
foreach ($includes as $include) {
$include_name = $include->getAttribute("name");
$input = $template->createElement('input');
$type = $template->createAttribute('type');
$typeval = $template->createTextNode('text');
$type->appendChild($typeval);
$input->appendChild($type);
$name = $template->createAttribute('name');
$nameval = $template->createTextNode('the_name');
$name->appendChild($nameval);
$input->appendChild($name);
$value = $template->createAttribute('value');
$valueval = $template->createTextNode($include_name);
$value->appendChild($valueval);
$input->appendChild($value);
if ($include->getAttribute("name") == "head") {
$template->getElementsByTagName('head')->item(0)->replaceChild($input,$include);
}
else {
$template->getElementsByTagName("body")->item(0)->replaceChild($input,$include);
}
}
//$template->load($nht);
echo $template->saveHTML();
这篇关于消息“未找到错误”的未捕获异常“ DOMException”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！
