Simexml_Load_FileNot Working"php_Network_getAddresses:FAILED:名称或服务未知"

2022-04-13 00:00:00 php simplexml
我最近才开始收到这些警告,我不确定为什么,也不知道如何修复它。更让我困惑的是,它以前是有效的,我开始在另一个类上工作,现在我开始收到这个错误...

IM在Web服务器上使用Linux fedora&;apache。

警告:implexml_Load_file() [unction.implexml-加载-文件]: Php_Network_getAddresses:getaddrinfo 失败:中的名称或服务未知 GetImagesFlickr.php 第17行

警告: Simplexml_load_file(http://api.flickr.com/services/rest/?method=flickr.photos.search&;api_key=9eb9f5e5fb72d6d2fed06cf4e64ba9bb&;media=photos&;per_page=50&;text=fgdc) [unction.implexml-Load-Files]:失败 要打开流,请执行以下操作: Php_Network_getAddresses:getaddrinfo 失败:中的名称或服务未知 GetImagesFlickr.php 第17行

警告:implexml_Load_file() [函数.implexml-加载-文件]:I/O 警告:无法加载外部 实体 "http://api.flickr.com/services/rest/?method=flickr.photos.search&;api_key=9eb9f5e5fb72d6d2fed06cf4e64ba9bb&;media=photos&;per_page=50&;text=fgdc" 在……里面 /var/www/html/Yahoo/GetImagesFlickr.php 第17行

<?php
class GetImagesFlickr
{
    const API_KEY = "***"; // Flickr api key
    const MAX_RESULTS_RETURNED = 50; // Max results returned in search

    private $url; // Flickr webservice url

    public function __construct () 
    {
        $this->url = "http://api.flickr.com/services/rest/?method=flickr.photos.search&api_key=".self::API_KEY."&media=photos&per_page=".self::MAX_RESULTS_RETURNED;
    }

    public function getImages ($search_term)
    {
        // Perform search and store xml data
        $xml_data = simplexml_load_file("{$this->url}&text={$search_term}");

        $search_results = array();

        // Go through xml data and store to array
        foreach ($xml_data->photos->photo as $current_photo)
        {
            $id = $current_photo['id'];
                        $title = $current_photo['title'];
            $farm = $current_photo['farm'];
            $secret = $current_photo['secret'];
            $server = $current_photo['server'];
            $url = "http://farm{$farm}.static.flickr.com/{$server}/{$id}_{$secret}.jpg";

            $complete_photo = array (
                'id'     => $id,
                                'title'  => $title,
                'farm'   => $farm,
                'secret' => $secret,
                'server' => $server,
                'url'    => $url
            );

            $search_results[] = $complete_photo;
        }

        return $search_results;
    }
}
?>

解决方案

您遇到的是网络/dns问题,而不是php问题。您的计算机似乎无法解析api.flickr.com的IP。

"su"切换到您的Web服务器用户,并尝试解析其中的名称,即

$ sudo bash
  # get root
$ su - apache
  # we're the apache user now
$ ping api.flickr.com

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