Here is piece of code
这是一段代码。
$doc = new DOMDocument();
$doc->loadHTML($article_header);
$imgs = $doc->getElementsByTagName('img');
foreach ($imgs as $img) {
Into $imgs
goes DOM img tag. Now I want to change the original img tag by adding some class to it.
进入$img的是DOM img标签。现在我想通过添加一些类来更改原始的img标记。
SO if the $article_header
was this:
如果$article_header是这样的:
"some text"...<img src = 'http://some_source'>...some text...
Now I want it to become this:
现在我想让它变成这样:
"some text"...<img class = 'someclass' src = 'http://some_source'>...some text...
UPDATE
更新
I repeat. Start variable is $article_header
. So all changes must be done to it.
我再说一遍。变量是article_header美元开始。所以所有的改变都必须对它进行。
With my code I just search through $article_header
for img tags , finding them putting them into some variables and change them there is ok, but how can I put all changes back to $article_header
???
对于我的代码,我只是在$article_header中搜索img标记,找到它们并将它们放入一些变量中并对它们进行更改,这是可以的,但是我如何将所有更改返回到$article_header呢??
3 个解决方案
#1
10
In your foreach loop, call $img->setAttribute('class', 'someclass');
. This should do the trick. See more at http://docs.php.net/manual/en/domelement.setattribute.php
在foreach循环中,调用$img->setAttribute('class', 'someclass');这应该能达到目的。多见于http://docs.php.net/manual/en/domelement.setattribute.php
Then you need to save the modified document back using $article_header = $doc->saveXml();
.
然后需要使用$article_header = $doc->saveXml()将修改后的文档保存回来;
#2
8
If you know that the element will not have a class set already you can just use DOMElement::setAttribute()
, like:
如果您知道该元素还没有一个类集,您可以使用DOMElement::setAttribute(),比如:
$img->setAttribute('class','someClass');
If you are not sure if the element might already have a class set, then you should do a getAttribute() first and then add your class to the list of classes.
如果您不确定元素是否已经有一个类集,那么您应该先做一个getAttribute(),然后将您的类添加到类的列表中。
#3
0
Is this what you were looking for: http://php.net/manual/en/domelement.setattribute.php
这就是您要查找的:http://php.net/manual/en/domelement.setattribute.php吗
#1
10
In your foreach loop, call $img->setAttribute('class', 'someclass');
. This should do the trick. See more at http://docs.php.net/manual/en/domelement.setattribute.php
在foreach循环中,调用$img->setAttribute('class', 'someclass');这应该能达到目的。多见于http://docs.php.net/manual/en/domelement.setattribute.php
Then you need to save the modified document back using $article_header = $doc->saveXml();
.
然后需要使用$article_header = $doc->saveXml()将修改后的文档保存回来;
#2
8
If you know that the element will not have a class set already you can just use DOMElement::setAttribute()
, like:
如果您知道该元素还没有一个类集,您可以使用DOMElement::setAttribute(),比如:
$img->setAttribute('class','someClass');
If you are not sure if the element might already have a class set, then you should do a getAttribute() first and then add your class to the list of classes.
如果您不确定元素是否已经有一个类集,那么您应该先做一个getAttribute(),然后将您的类添加到类的列表中。
#3
0
Is this what you were looking for: http://php.net/manual/en/domelement.setattribute.php
这就是您要查找的:http://php.net/manual/en/domelement.setattribute.php吗