使用 php 从 url 中提取元数据，奇怪的字符？

Question

我遇到了一些问题，我正在尝试从外部提取基本元数据 URL，我已经成功地做到了大部分，但它导致了一些字符问题当我调用图像 url 实际上是 mäenjaksa7-300x200.jpg 时，作为 Ä ä ö 的字母会像 mäenjaksa7-300x200.jpg 一样出现，我的代码在下面，感谢您的帮助。

function file_get_contents_curl($url)
{
$ch = curl_init();

curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);

$data = curl_exec($ch);
curl_close($ch);

return $data; }

$html = file_get_contents_curl($params['url']);

//parsing begins here:
$doc = new DOMDocument();
@$doc->loadHTML($html);
$nodes = $doc->getElementsByTagName('title');

//get and display what you need:
$urltitle = $nodes->item(0)->nodeValue;

$metas = $doc->getElementsByTagName('meta');

for ($i = 0; $i < $metas->length; $i++)
{
$meta = $metas->item($i);
if($meta->getAttribute('name') == 'description')
    $description = $meta->getAttribute('content');
if($meta->getAttribute('name') == 'keywords')
    $keywords = $meta->getAttribute('content');
if($meta->getAttribute('property') == 'og:image')
    $ogimage = $meta->getAttribute('content');
if($meta->getAttribute('rel') == 'image_src')
    $relimage = $meta->getAttribute('content');
}

 if( empty($ogimage) ) {
$metaimage = $relimage;
} else {
$metaimage = $ogimage;
}

Answer 1

也许你必须确保你的 url header 有 content-type -> charset 到 utf-8或合适的。您必须确保您的 url 不是内容 none Ascii 字符或确保您已正确设置适当的 "character’s encoder"。也许我没有很好地理解你的问题，但是看看这个与你的代码无关但可能有用的例子：

$url = "http://www.example.com/services/calculation"; 
    $page = "/services/calculation"; 
    $headers = array( 
        "POST ".$page." HTTP/1.0", 
        "Content-type: text/xml;charset=\"utf-8\"", 
        "Accept: text/xml", 
        "Cache-Control: no-cache", 
        "Pragma: no-cache", 
        "SOAPAction: \"run\"", 
        "Content-length: ".strlen($xml_data), 
        "Authorization: Basic " . base64_encode($credentials) 
    ); 

    $ch = curl_init(); 
    curl_setopt($ch, CURLOPT_URL,$url); 
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 
    curl_setopt($ch, CURLOPT_TIMEOUT, 60); 
    curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); 
    curl_setopt($ch, CURLOPT_USERAGENT, $defined_vars['HTTP_USER_AGENT']);

Answer 2

解决方法：在下面添加查找：

$html = file_get_contents_curl($url);

在下面添加：

 //Change encoding to UTF-8 from ISO-8859-1
    $html = iconv('UTF-8', 'ISO-8859-1//TRANSLIT', $html);

使用 php 从 url 中提取元数据，奇怪的字符？

Pulling metadate from url with php, strange characters?

metadata

external