Changeset 10753 for trunk/wp-includes/functions.php

Timestamp:

03/10/2009 12:50:00 AM (16 years ago)

Author:

ryan

Message:

Timezone support. Props Otto42. see #3962

File:

• trunk/wp-includes/functions.php (modified) (1 diff)

trunk/wp-includes/functions.php

@@ -3050 +3050 @@
 }
 
+/**
+ * gmt_offset modification for smart timezone handling
+ * 
+ * Overrides the gmt_offset option if we have a timezone_string available
+ */
+function wp_timezone_override_offset() {
+    if (!wp_timezone_supported()) return false;
+
+    $tz = get_option('timezone_string');
+    if (empty($tz)) return false;
+
+    @date_default_timezone_set($tz);
+        
+    $dateTimeZoneSelected = timezone_open($tz);
+    $dateTimeServer = date_create();
+    if ($dateTimeZoneSelected === false || $dateTimeServer === false) return false;
+        
+    $timeOffset = timezone_offset_get($dateTimeZoneSelected, $dateTimeServer);
+    $timeOffset = $timeOffset / 3600;
+        
+    return $timeOffset;
+}
+
+/**
+ * Check for PHP timezone support
+ * 
+ */
+function wp_timezone_supported() {
+    if (function_exists('date_default_timezone_set') 
+        && function_exists('timezone_identifiers_list')
+        && function_exists('timezone_open') 
+        && function_exists('timezone_offset_get')
+        ) 
+        return true;
+
+    return false;
+}
+
+/**
+ * Gives a nicely formatted list of timezone strings // temporary! Not in final
+ *
+ * @param string $selectedzone - which zone should be the selected one
+ *
+ */
+function wp_timezone_choice($selectedzone) {
+    $all = timezone_identifiers_list();
+
+    $i = 0;
+    foreach ( $all as $zone ) {
+        $zone = explode('/',$zone);
+        $zonen[$i]['continent'] = isset($zone[0]) ? $zone[0] : '';
+        $zonen[$i]['city'] = isset($zone[1]) ? $zone[1] : '';
+        $zonen[$i]['subcity'] = isset($zone[2]) ? $zone[2] : '';
+        $i++;
+    }
+
+    asort($zonen);
+    $structure = '';
+    $pad = '   ';
+
+    if ( empty($selectedzone) )
+        $structure .= '<option selected="selected" value="">' . __('Select a city') . "</option>\n";
+    foreach ( $zonen as $zone ) {
+        extract($zone);
+        if ( empty($selectcontinent) && !empty($city) ) {
+            $selectcontinent = $continent;
+            $structure .= '<optgroup label="'.$continent.'">' . "\n"; // continent
+        } elseif ( !empty($selectcontinent) && $selectcontinent != $continent ) {
+            $structure .= "</optgroup>\n";
+            $selectcontinent = '';
+            if ( !empty($city) ) {
+                $selectcontinent = $continent;
+                $structure .= '<optgroup label="'.$continent.'">' . "\n"; // continent
+            }
+        }
+
+        if ( !empty($city) ) {
+            if ( !empty($subcity) ) {
+                $city = $city . '/'. $subcity;
+            }
+            $structure .= "\t<option ".((($continent.'/'.$city)==$selectedzone)?'selected="selected "':'')." value=\"".($continent.'/'.$city)."\">$pad".str_replace('_',' ',$city)."</option>\n"; //Timezone
+        } else {
+            $structure .= "<option ".(($continent==$selectedzone)?'selected="selected "':'')." value=\"".$continent."\">".$continent."</option>\n"; //Timezone
+        }
+    }
+
+    if ( !empty($selectcontinent) )
+        $structure .= "</optgroup>\n";
+    return $structure;
+}
+
 
 ?>