Warning: Undefined array key "id" in /home/httpd/vhosts/aiser.com.ec/httpdocs/descargas.php on line 2

Fatal error: Uncaught Error: Call to undefined function mysql_pconnect() in /home/httpd/vhosts/aiser.com.ec/httpdocs/del_sitio/shut.php:5
Stack trace:
#0 /home/httpd/vhosts/aiser.com.ec/httpdocs/descargas.php(4): Conectarse()
#1 {main}
  thrown in /home/httpd/vhosts/aiser.com.ec/httpdocs/del_sitio/shut.php on line 5