Initial commit

#pma/templates/table/structure/add_column.phtml

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+<form method="post" action="tbl_addfield.php" id="addColumns" name="addColumns" onsubmit="return checkFormElementInRange(this, 'num_fields', '<?= str_replace('\'', '\\\'', __('You have to add at least one column.')); ?>', 1)">
+    <?= PMA_URL_getHiddenInputs($GLOBALS['db'], $GLOBALS['table']); ?>
+    <?php if (PMA\libraries\Util::showIcons('ActionLinksMode')): ?>
+        <?= PMA\libraries\Util::getImage('b_insrow.png', __('Add column')); ?>&nbsp;
+    <?php endif; ?>
+    <?php $num_fields = '<input type="number" name="num_fields" value="1" onfocus="this.select()" min="1" required />'; ?>
+    <?= sprintf(__('Add %s column(s)'), $num_fields); ?>
+    <input type="hidden" name="field_where" value="after"/>&nbsp;
+    <!-- I tried displaying the drop-down inside the label but with Firefox the drop-down was blinking -->
+    <select name="after_field" onchange="checkFirst()">
+        <option value="first" data-pos = "first">
+            <?= __('at beginning of table'); ?>
+        </option>
+        <?php $cols_count = count($columns_list);
+         foreach ($columns_list as $one_column_name): ?>
+            <?php if (--$cols_count == 0): ?>
+                <option value="<?= htmlspecialchars($one_column_name); ?>" selected="selected">
+            <?php else: ?>
+                <option value="<?= htmlspecialchars($one_column_name); ?>">
+            <?php endif; ?>
+            <?= sprintf(__('after %s'), htmlspecialchars($one_column_name)); ?>
+            </option>
+        <?php endforeach; ?>
+    </select>
+    <input type="submit" value="<?= __('Go'); ?>" />
+</form>