56 lines
1.8 KiB
PHP
56 lines
1.8 KiB
PHP
<?php
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function fetchOpenGraphData($url) {
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$ch = curl_init();
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curl_setopt($ch, CURLOPT_URL, $url);
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
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curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
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curl_setopt($ch, CURLOPT_TIMEOUT, 5);
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curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (compatible; Bot/1.0)');
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$html = curl_exec($ch);
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$info = curl_getinfo($ch);
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curl_close($ch);
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if (!$html || $info['http_code'] !== 200) return null;
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if (!class_exists('DOMDocument')) return null;
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$doc = new DOMDocument();
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@$doc->loadHTML($html);
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$metas = $doc->getElementsByTagName('meta');
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$data = [
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'title' => '',
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'description' => '',
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'image' => '',
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'url' => $url,
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'site_name' => ''
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];
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// Try title tag if og:title is missing
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$titles = $doc->getElementsByTagName('title');
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if ($titles->length > 0) {
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$data['title'] = $titles->item(0)->nodeValue;
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}
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foreach ($metas as $meta) {
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$property = $meta->getAttribute('property');
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$name = $meta->getAttribute('name');
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$content = $meta->getAttribute('content');
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if ($property === 'og:title' || $name === 'twitter:title') $data['title'] = $content;
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if ($property === 'og:description' || $name === 'description' || $name === 'twitter:description') $data['description'] = $content;
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if ($property === 'og:image' || $name === 'twitter:image') $data['image'] = $content;
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if ($property === 'og:site_name') $data['site_name'] = $content;
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}
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// Filter out empty results
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if (empty($data['title']) && empty($data['description'])) return null;
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return $data;
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}
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function extractUrls($text) {
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$pattern = '/https?:\/\/[^\s<]+/';
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preg_match_all($pattern, $text, $matches);
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return $matches[0];
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}
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