Merge branch 'QA_5_0'

Signed-off-by: William Desportes <williamdes@wdes.fr>

ChangeLog

@@ -70,6 +70,8 @@ phpMyAdmin - ChangeLog
 - issue #15614 Fix undefined offset on index page for MySQL 5.7.8 (server charset)
 - issue #15692 Fix JavaScript error when user has not enough privilege to view query statistics.
 - issue #14248 Fixed date selection in search menu missing higher Z-index value
+- issue        Fix Uncaught php TypeError on php 8.0 when adding a column to table create form
+- issue #15682 Fix calendar not taking current time as default value
 
 4.9.2 (2019-11-21)
 - issue #14184 Change the cookie name from phpMyAdmin to phpMyAdmin_https for HTTPS, fixes many "Failed to set session cookie" errors

js/functions.js

@@ -120,7 +120,13 @@ Functions.addDatepicker = function ($thisElement, type, options) {
         showTimepicker = false;
     }
 
+    // Getting the current Date and time
+    var currentDateTime = new Date();
+
     var defaultOptions = {
+        hour: currentDateTime.getHours(),
+        minute: currentDateTime.getMinutes(),
+        second: currentDateTime.getSeconds(),
         showOn: 'button',
         buttonImage: pmaThemeImage + 'b_calendar.png',
         buttonImageOnly: true,

libraries/tbl_columns_definition_form.inc.php

@@ -271,7 +271,7 @@ for ($columnNumber = 0; $columnNumber < $num_fields; $columnNumber++) {
         );
 
         $mime_map[$columnMeta['Field']] = array_merge(
-            $mime_map[$columnMeta['Field']],
+            isset($mime_map[$columnMeta['Field']]) ? $mime_map[$columnMeta['Field']] : [],
             [
                 'mimetype' => Util::getValueByKey($_POST, "field_mimetype.${columnNumber}"),
                 'transformation' => Util::getValueByKey(