gistfile1.txt

root@testphp:/# lsb_release -a
No LSB modules are available.
Distributor ID:	Debian
Description:	Debian GNU/Linux 9.5 (stretch)
Release:	9.5
Codename:	stretch
root@testphp:/# mysql -u test -ptest -e "SHOW DATABASES;"
+--------------------+
| Database           |
+--------------------+
| information_schema |
| test               |
+--------------------+
root@testphp:/# cat /var/www/html/mysql.php
<?php 
echo 'Current PHP version: ' . phpversion();

$link = mysql_connect("localhost", "test", "test")  
or die("Could not connect: " . mysql_error()); 
echo ("Connected successfully\n"); 

$db_list = mysql_list_dbs($link);
while ($db = mysql_fetch_object($db_list))
  {
  echo $db->Database . "<br />\n";
  }

mysql_close($link); 
?>
root@testphp:/# curl http://localhost/mysql.php
Current PHP version: 5.6.38-2+0~20181015120829.6+stretch~1.gbp567807Connected successfully
information_schema<br />
test<br />
root@testphp:/#