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xml - PHP: Call to undefined function: simplexml_load_string()

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("[email protected]","hi".$fb_like_count,$message);
}

But I am geting undefined call function error.

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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 Ond?ej Sury'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

And restart Apache:

sudo service apache2 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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