SimpleXml foreach：忽略元素

Question

        <?php

    $xml = "<articles>
    <article id=\"18357302\">
    <articleCategories>
    <articleCategory id=\"default\"/>
    <articleCategory id=\"66607\"/>
    </articleCategories>
    </article>
    </articles>";

    $feed = simplexml_load_string($xml);

    $items = $feed->article;
    foreach ($items as $article) {

    //  $categorie = $article->articleCategories->articleCategory[id];
    $categories = $article->articleCategories;
    print_r($categories);
    echo "<br>print_r indeed returns an array, but impossible to echo it using foreach!!!<br>";
    foreach ($categories->id as $category) {
if ($category != "default") {
        echo $category;
}
    }
    }
    ?>

不确定我做错了什么，我只是想找到一种方法来删除 articlesCategories 中具有默认值的部分

<articleCategory id=\"default\"/>

脚本需要忽略这部分，只使用 XML 文件中的下一篇文章类别，我希望避免使用正则表达式删除它

Answer 1

脚本遍历 articleCategories 标签。但它需要遍历 articleCategory 标签。

以下更改就足够了。

foreach ($categories->articleCategory as $category) {
    if ($category["id"] != "default") {
        echo $category["id"];
    }
}

SimpleXml foreach：忽略元素

SimpleXml foreach : ignore element

php

xml

arrays

simplexml