如何使用PHP Simple DOM DOM解析器添加自定义属性 [英] how to add a custom attributes with PHP Simple HTML DOM Parser
问题描述
我正在处理一个需要使用PHP Simple HTML Dom Parser的项目,并且我需要一种方法来根据类名称向一些元素添加自定义属性。
I am working with a project that require the use of PHP Simple HTML Dom Parser, and I need a way to add a custom attribute to a number of elements based on class name.
我可以通过foreach循环遍历元素,并且设置标准属性(如href)很容易,但我找不到添加自定义属性的方法。
I am able to loop through the elements with a foreach loop, and it would be easy to set a standard attribute such as href, but I can't find a way to add a custom attribute.
我能猜到的最接近的是:
The closest I can guess is something like:
foreach($html -> find(".myelems") as $element) {
$element->myattr="customvalue";
}
但这不起作用。
我已经看到类似主题的其他一些问题,但他们都建议使用另一种方法来解析html(domDocument等)。在我的情况下,这不是一个选项,因为我必须使用简单的HTML DOM解析器。
I have seen a number of other questions on similar topics, but they all suggest using an alternative method for parsing html (domDocument etc.). In my case this is not an option, as I must use Simple HTML DOM Parser.
推荐答案
你试过吗?试试这个例子(示例:添加数据标签)。
Did you try it? Try this example (Sample: adding data tags).
include 'simple_html_dom.php';
$html_string = '
<style>.myelems{color:green}</style>
<div>
<p class="myelems">text inside 1</p>
<p class="myelems">text inside 2</p>
<p class="myelems">text inside 3</p>
<p>simple text 1</p>
<p>simple text 2</p>
</div>
';
$html = str_get_html($html_string);
foreach($html->find('div p[class="myelems"]') as $key => $p_tags) {
$p_tags->{'data-index'} = $key;
}
echo htmlentities($html);
输出:
<style>.myelems{color:green}</style>
<div>
<p class="myelems" data-index="0">text inside 1</p>
<p class="myelems" data-index="1">text inside 2</p>
<p class="myelems" data-index="2">text inside 3</p>
<p>simple text 1</p>
<p>simple text 2</p>
</div>
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