Fix timezone list HTML Escaped

app/Providers/ExtendedTimezonelistProvider.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace App\Providers;
+
+use App\Support\TimezonelistExtended;
+use Illuminate\Support\ServiceProvider;
+
+class ExtendedTimezonelistProvider extends ServiceProvider
+{
+    /**
+     * Bootstrap services.
+     *
+     * @return void
+     */
+    public function boot()
+    {
+    }
+
+    /**
+     * Register services.
+     *
+     * @return void
+     */
+    public function register()
+    {
+        $this->app->singleton('timezonelist', function ($app) {
+            return new TimezonelistExtended;
+        });
+    }
+}

app/Support/TimezonelistExtended.php

@@ -0,0 +1,107 @@
+<?php
+
+namespace App\Support;
+
+use DateTime;
+use DateTimeZone;
+use Jackiedo\Timezonelist\Timezonelist;
+
+class TimezonelistExtended extends Timezonelist
+{
+    /**
+     * Format to display timezones
+     *
+     * @param  string $timezone
+     * @param  string $continent
+     * @param bool $htmlencode
+     * @return string
+     */
+    protected function formatTimezone($timezone, $continent, $htmlencode=true)
+    {
+        $time = new DateTime(null, new DateTimeZone($timezone));
+        $offset = $time->format('P');
+        if ($htmlencode) {
+            $offset = str_replace('-', ' &minus; ', $offset);
+            $offset = str_replace('+', ' &plus; ', $offset);
+        }
+        $timezone = substr($timezone, strlen($continent) + 1);
+        $timezone = str_replace('St_', 'St. ', $timezone);
+        $timezone = str_replace('_', ' ', $timezone);
+        $formatted = '(GMT/UTC' . $offset . ')' . self::WHITESPACE_SEP . $timezone;
+        return $formatted;
+    }
+
+    /**
+     * Create a GMT timezone select element for form
+     *
+     * @param string $name
+     * @param string $selected
+     * @param mixed $attr
+     * @param bool $htmlencode
+     * @return string
+     */
+    public function create($name, $selected='', $attr='', $htmlencode=true)
+    {
+        // Attributes for select element
+        $attrSet = null;
+        if (!empty($attr)) {
+            if (is_array($attr)) {
+                foreach ($attr as $attr_name => $attr_value) {
+                    $attrSet .= ' ' .$attr_name. '="' .$attr_value. '"';
+                }
+            } else {
+                $attrSet = ' ' .$attr;
+            }
+        }
+        // start select element
+        $listbox = '<select name="' .$name. '"' .$attrSet. '>';
+        // Add popular timezones
+        $listbox .= '<optgroup label="General">';
+        foreach ($this->popularTimezones as $key => $value) {
+            $selected_attr = ($selected == $key) ? ' selected="selected"' : '';
+            $listbox .= '<option value="' .$key. '"' .$selected_attr. '>' .$value. '</option>';
+        }
+        $listbox .= '</optgroup>';
+        // Add all timezone of continents
+        foreach ($this->continents as $continent => $mask) {
+            $timezones = DateTimeZone::listIdentifiers($mask);
+            // start optgroup tag
+            $listbox .= '<optgroup label="' .$continent. '">';
+            // create option tags
+            foreach ($timezones as $timezone) {
+                $selected_attr = ($selected == $timezone) ? ' selected="selected"' : '';
+                $listbox .= '<option value="' .$timezone. '"' .$selected_attr. '>';
+                $listbox .= $this->formatTimezone($timezone, $continent, $htmlencode);
+                $listbox .= '</option>';
+            }
+            // end optgroup tag
+            $listbox .= '</optgroup>';
+        }
+        // end select element
+        $listbox .= '</select>';
+        return $listbox;
+    }
+
+    /**
+     * Create a timezone array
+     *
+     * @param bool $htmlencode
+     * @return mixed
+     */
+    public function toArray($htmlencode=false)
+    {
+        $list = [];
+        // Add popular timezones to list
+        foreach ($this->popularTimezones as $key => $value) {
+            $list['General'][$key] = $value;
+        }
+        // Add all timezone of continents to list
+        foreach ($this->continents as $continent => $mask) {
+            $timezones = DateTimeZone::listIdentifiers($mask);
+            foreach ($timezones as $timezone) {
+                $list[$continent][$timezone] = $this->formatTimezone($timezone, $continent, $htmlencode);
+            }
+        }
+        return $list;
+    }
+}

config/app.php

@@ -90,6 +90,7 @@ return [
         App\Providers\EventServiceProvider::class,
         App\Providers\RouteServiceProvider::class,
         App\Providers\vaCentralServiceProvider::class,
+        App\Providers\ExtendedTimezonelistProvider::class,
     ],
 
     'aliases' => [