databases/phppgadmin has issues with PHP 8.0 even though there's a 8.0 flavor. 

Login fails with "Virtual Class -- cannot instantiate" 

This has been reported - it doesn't seem FreeBSD specific: https://stackoverflow.com/questions/65299248/phppgadmin-login-fail-virtual-class-cannot-instantiate.   

(@hericklr's isn't optimal)

@ormorph proposed a patch, it seems to work:

https://github.com/phppgadmin/phppgadmin/issues/119#issuecomment-801712145

--- adodb-postgres64.inc.php.bak        2022-05-03 10:42:54.773501000 -0700
+++ adodb-postgres64.inc.php    2022-05-03 10:47:32.151320000 -0700
@@ -122,7 +122,12 @@
        // changes the metaColumnsSQL, adds columns: attnum[6]
        }
        
-       function ServerInfo()
+       function __construct()
+       {
+       // changes the metaColumnsSQL, adds columns: attnum[6]
+       }
+       
+        function ServerInfo()
        {
                if (isset($this->version)) return $this->version;

--- all_db.php.bak      2022-05-03 10:37:26.866823000 -0700
+++ all_db.php  2022-05-03 10:42:04.130932000 -0700
@@ -199,7 +199,7 @@
                echo "\t\t<td class=\"data1\">\n";
                echo "\t\t\t<select name=\"formEncoding\">\n";
                echo "\t\t\t\t<option value=\"\"></option>\n";
-               while (list ($key) = each ($data->codemap)) {
+                foreach ($data->codemap as $key => $value) {
                    echo "\t\t\t\t<option value=\"", htmlspecialchars($key), "\"",
                                ($key == $_POST['formEncoding']) ? ' selected="selected"' : '', ">",
                                $misc->printVal($key), "</option>\n";