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<?php |
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namespace Utils\Tools { |
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use Utils\Lister, Utils\Validate, Date, Explorer, Number, XML; |
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class Sitemap { |
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private $xml = null, $loaded = false; |
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# Constructor |
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public function __construct() { |
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$urlset = '<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" />'; |
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if (false !== ($xml = XML::create($urlset))) $this->xml = $xml; |
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} |
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# Load sitemap |
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public function load(int $time) { |
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$file_name = (DIR_SYSTEM_DATA . 'Sitemap.xml'); |
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$modified = Explorer::modified($file_name); |
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if ((false === $modified) || ($modified <= $time)) return false; |
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if (false === ($xml = Explorer::xml($file_name))) return false; |
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$this->xml = $xml; $this->loaded = true; |
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# ------------------------ |
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return true; |
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} |
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# Save sitemap |
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public function save() { |
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if ((null === $this->xml) || $this->loaded) return false; |
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$file_name = (DIR_SYSTEM_DATA . 'Sitemap.xml'); |
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if (false === Explorer::save($file_name, XML::string($this->xml), true)) return false; |
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# ------------------------ |
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return true; |
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} |
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# Add item |
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public function add(string $loc, string $lastmod = null, string $changefreq = null, float $priority = null) { |
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if ((null === $this->xml) || $this->loaded) return false; |
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if (false === ($loc = Validate::url($loc))) return false; |
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# Create url object |
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$url = $this->xml->addChild('url'); $url->addChild('loc', $loc); |
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# Set last modified |
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if ((null !== $lastmod) && (false !== ($lastmod = Date::validate($lastmod, DATE_FORMAT_W3C)))) { |
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$url->addChild('lastmod', $lastmod); |
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} |
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# Set change frequency |
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if ((null !== $changefreq) && (false !== ($changefreq = Lister\Frequency::validate($changefreq)))) { |
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$url->addChild('changefreq', $changefreq); |
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} |
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# Set priority |
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if (null !== $priority) $url->addChild('priority', Number::formatFloat($priority, 0, 1, 1)); |
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# ------------------------ |
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return true; |
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} |
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# Return XMl |
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public function xml() { |
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return $this->xml; |
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} |
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} |
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} |
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cadmium-org /
cadmium-cms
