调用未定义的函数：simplexml_load_string（） [英] Call to undefined function: simplexml_load_string()

问题描述

我正在使用cron文件实现Facebook计数功能。在哪个cron中每10分钟运行一次并计算总页数。

  for（$ i = 0; $ i< 3; $ i ++）{
 $ source_url = $ cars [$ i]; 
 $ rest_url =http://api.facebook.com/restserver.php?method=links.getStats&urls=\".urlencode($source_url）; 
 $ curl = curl_init（）; 
 curl_setopt（$ curl，CURLOPT_URL，$ rest_url）; 
 curl_setopt（$ curl，CURLOPT_RETURNTRANSFER，1）; 
 $ content = curl_exec（$ curl）; 
 curl_close（$ curl）; 
 $ message = stripslashes（$ content）; 
 $ xml_record = simplexml_load_string（$ message）; 
 $ fb_like_count = $ xml_record-> link_stat-> like_count; 
 echo。$ fb_like_count; 
 mail（[e-mail]，hi。$ fb_like_count，$ message）; 
} 
  

但是我正在创建未定义的调用函数错误。

解决方案

对于PHP 7和Ubuntu 14.04，过程如下。由于PHP 7不在官方Ubuntu PPA中，因此您可能通过OndřejSurý的PPA安装它（sudo add-apt-repository ppa：ondrej / php）。转到/etc/php/7.0/fpm并编辑php.ini，取消对以下行的注释：

  extension = php_xmlrpc.dll 
  

然后只需安装php7.0-xml：

  sudo apt-get install php7.0-xml 
  

重新启动PHP：

  sudo service php7.0 -fpm restart 
  

如果您使用的是包含PHP 7的更高版本的Ubuntu版本，那么该过程很可能也是一样的（除了添加任何第三方存储库） p>

I am implementing facebook count function using cron file. In which cron runs every 10 minutes and counts the total likes of a page.

for($i=0;$i<3;$i++){
    $source_url =$cars[$i];
    $rest_url = "http://api.facebook.com/restserver.php?method=links.getStats&urls=".urlencode($source_url);
    $curl = curl_init();
    curl_setopt($curl, CURLOPT_URL,$rest_url);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
    $content = curl_exec($curl);
    curl_close($curl);
    $message=stripslashes($content);
    $xml_record = simplexml_load_string($message);
    $fb_like_count = $xml_record->link_stat->like_count;
    echo "".$fb_like_count;
    mail("[e-mail]","hi".$fb_like_count,$message);
}

But I am geting undefined call function error.

解决方案

For PHP 7 and Ubuntu 14.04 the procedure is follows. Since PHP 7 is not in the official Ubuntu PPAs you likely installed it through Ondřej Surý's PPA (sudo add-apt-repository ppa:ondrej/php). Go to /etc/php/7.0/fpm and edit php.ini, uncomment to following line:

extension=php_xmlrpc.dll

Then simply install php7.0-xml:

sudo apt-get install php7.0-xml

And restart PHP:

sudo service php7.0-fpm restart

If you are on a later Ubuntu version where PHP 7 is included, the procedure is most likely the same as well (except adding any 3rd party repository).

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