Fix various compatibility issues with PHP 8

libs/ical/Property/Event/Geo.php

@@ -0,0 +1,82 @@
+<?php
+
+/*
+ * This file is part of the eluceo/iCal package.
+ *
+ * (c) Markus Poerschke <markus@eluceo.de>
+ *
+ * This source file is subject to the MIT license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+namespace Eluceo\iCal\Property\Event;
+
+use Eluceo\iCal\Property;
+
+/**
+ * GEO property.
+ *
+ * @see https://tools.ietf.org/html/rfc5545#section-3.8.1.6
+ */
+class Geo extends Property
+{
+    /**
+     * @var float
+     */
+    private $latitude;
+
+    /**
+     * @var float
+     */
+    private $longitude;
+
+    public function __construct(float $latitude, float $longitude)
+    {
+        $this->latitude = $latitude;
+        $this->longitude = $longitude;
+
+        if ($this->latitude < -90 || $this->latitude > 90) {
+            throw new \InvalidArgumentException("The geographical latitude must be a value between -90 and 90 degrees. '{$this->latitude}' was given.");
+        }
+
+        if ($this->longitude < -180 || $this->longitude > 180) {
+            throw new \InvalidArgumentException("The geographical longitude must be a value between -180 and 180 degrees. '{$this->longitude}' was given.");
+        }
+
+        parent::__construct('GEO', new Property\RawStringValue($this->getGeoLocationAsString()));
+    }
+
+    /**
+     * @deprecated This method is used to allow backwards compatibility for Event::setLocation
+     *
+     * @return Geo
+     */
+    public static function fromString(string $geoLocationString): self
+    {
+        $geoLocationString = str_replace(',', ';', $geoLocationString);
+        $geoLocationString = str_replace('GEO:', '', $geoLocationString);
+        $parts = explode(';', $geoLocationString);
+
+        return new static((float) $parts[0], (float) $parts[1]);
+    }
+
+    /**
+     * Returns the coordinates as a string.
+     *
+     * @example 37.386013;-122.082932
+     */
+    public function getGeoLocationAsString(string $separator = ';'): string
+    {
+        return number_format($this->latitude, 6) . $separator . number_format($this->longitude, 6);
+    }
+
+    public function getLatitude(): float
+    {
+        return $this->latitude;
+    }
+
+    public function getLongitude(): float
+    {
+        return $this->longitude;
+    }
+}