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這裏是我試圖解析一段時間的XML,但是我被困在嵌套的元素上。使用php解析嵌套的xml
<rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:course="https://www.example.org/api/course/elements/1.0/" xmlns:staff="https://www.example.org/api/staff/elements/1.0/" version="2.0">
<channel>
<item>
<title>example.org course feed</title>
<link>https://www.example.org/api/v2/report/course-feed/rss</link>
<description>.org - course catalog feed</description>
<language>en</language>
<course:instructors>
<course:staff>
<staff:name>Mark Moran</staff:name>
</course:staff>
</course:instructors>
</item>
</channel>
如何解析課程:教師,我的PHP代碼是
$rss = simplexml_load_file('https://www.edx.org/api/v2/report/course-feed/rss');
$namespaces = $rss->getNamespaces(true);
foreach ($rss->channel->item as $item) {
$title = $item->title ;
}
編輯:2
$rss = simplexml_load_file('https://www.example.org/api/v2/report/course-feed/rss');
$namespaces = $rss->getNamespaces(true);//Add this line
foreach ($rss->channel->item as $item) {
$course_title = $item->title ;
$course_description = $item->description;
$course_url = $item->link;
$course = $item->children($namespaces['course']);
$course_thumbnail_url = $course->{'image-thumbnail'};
$course_banner_url = $course->{'image-banner'};
$course_teaser_url = $course->{'video-youtube'};
$course_start_date = $course->start;
$course_duration = $course->length;
$instructors = $item->children('course',true)->instructors;
$staff = $instructors->children('course',true)->staff;
$instructor_name = $staff->children('staff',true)->name;
$instructor_image = $staff->children('staff',true)->image;
echo $instructor_name.' '.$instructor_image,"<br>";
$course_price = 0;
$course_provider_id = 3;
$course_affiliates = $course->school;
$categories = $course->subject;
$categories = explode(',', $categories);
$c = count($categories);
$i = 0;
while($i < $c)
{
$course_rating = mt_rand(3.5,5);
$course_category = $categories[$i];
if(mysqli_query($conn,"INSERT into course_catalog_table (course_title,course_description,course_url,course_thumbnail_url,course_banner_url,course_teaser_url,course_category,course_start_date,course_duration,course_rating,course_affiliates,course_instructor,course_instructor_image,course_price,course_provider_id) VALUES('$course_title','$course_description','$course_url','$course_thumbnail_url','course_banner_url','course_teaser_url','$course_category','$course_start_date','$course_duration','$course_rating','$course_affiliates','$instructor_name',$instructor_image','$course_price')"))
{
echo "successfull\r\n";
}
$i++;
}
}
當我打印instructor_name和instructor_image有時它的打印但有時會引發警告main(): Node no longer exists
,我如何檢查是否爲空
的main():投擲警告節點不再行存在與'$ name' – parvez
主要是什麼()?請顯示您的完整代碼和錯誤。因爲根據您提供的代碼,解決方案正常工作。看看測試運行鏈接。 –
檢查編輯版本 – parvez