From 78a5fc973844c64fe9ead260948b85efaf680da9 Mon Sep 17 00:00:00 2001
From: Derek Allard <derek.allard@ellislab.com>
Date: Thu, 5 Feb 2009 16:34:35 +0000
Subject: Added the ability to have optgroups in form_dropdown() within the
 form helper.

---
 system/helpers/form_helper.php | 21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

(limited to 'system')

diff --git a/system/helpers/form_helper.php b/system/helpers/form_helper.php
index c002c6fc0..01d0ea76d 100644
--- a/system/helpers/form_helper.php
+++ b/system/helpers/form_helper.php
@@ -268,11 +268,26 @@ if ( ! function_exists('form_dropdown'))
 		foreach ($options as $key => $val)
 		{
 			$key = (string) $key;
-			$val = (string) $val;
 
-			$sel = (in_array($key, $selected))?' selected="selected"':'';
+			if (is_array($val))
+			{
+				$form .= '<optgroup label="'.$key.'">'."\n";
+
+				foreach ($val as $optgroup_key => $optgroup_val)
+				{
+					$sel = (in_array($key, $selected)) ? ' selected="selected"' : '';
+
+					$form .= '<option value="'.$optgroup_key.'"'.$sel.'>'.(string) $optgroup_val."</option>\n";
+				}
 
-			$form .= '<option value="'.$key.'"'.$sel.'>'.$val."</option>\n";
+				$form .= '</optgroup>'."\n";
+			}
+			else
+			{
+				$sel = (in_array($key, $selected)) ? ' selected="selected"' : '';
+
+				$form .= '<option value="'.$key.'"'.$sel.'>'.(string) $val."</option>\n";
+			}
 		}
 
 		$form .= '</select>';
-- 
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