DOM helper on plugins
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20151c7f05
commit
df978c0a75
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@ -4,6 +4,8 @@ class DOM {
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public static function getFirstImage($content)
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{
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// Disable warning
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libxml_use_internal_errors();
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$dom = new DOMDocument();
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$dom->loadHTML('<meta http-equiv="content-type" content="text/html; charset=utf-8">'.$content);
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$finder = new DomXPath($dom);
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@ -89,7 +89,7 @@ class pluginOpenGraph extends Plugin {
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// If the page doesn't have a coverImage try to get an image from the HTML content
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if (empty($og['image'])) {
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// Get the image from the content
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$src = $this->getImage($content);
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$src = DOM::getFirstImage($content);
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if ($src!==false) {
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$og['image'] = $src;
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} else {
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@ -103,24 +103,4 @@ class pluginOpenGraph extends Plugin {
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return $html;
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}
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// Returns the first image from the HTML content
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private function getImage($content)
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{
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$dom = new DOMDocument();
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$dom->loadHTML('<meta http-equiv="content-type" content="text/html; charset=utf-8">'.$content);
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$finder = new DomXPath($dom);
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$images = $finder->query("//img");
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if($images->length>0) {
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// First image from the list
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$image = $images->item(0);
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// Get value from attribute src
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$imgSrc = $image->getAttribute('src');
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// Returns the image src
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return $imgSrc;
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}
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return false;
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}
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}
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@ -83,7 +83,7 @@ class pluginTwitterCards extends Plugin {
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// If the page doesn't have a coverImage try to get an image from the HTML content
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if( empty($data['image']) ) {
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// Get the image from the content
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$src = $this->getImage($content);
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$src = DOM::getFirstImage($content);
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if ($src!==false) {
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$data['image'] = $src;
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} else {
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@ -96,25 +96,4 @@ class pluginTwitterCards extends Plugin {
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$html .= '<meta property="twitter:image" content="'.$data['image'].'">'.PHP_EOL;
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return $html;
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}
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// Returns the first image from the HTML content
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private function getImage($content)
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{
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$dom = new DOMDocument();
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$dom->loadHTML('<meta http-equiv="content-type" content="text/html; charset=utf-8">'.$content);
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$finder = new DomXPath($dom);
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$images = $finder->query("//img");
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if($images->length>0) {
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// First image from the list
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$image = $images->item(0);
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// Get value from attribute src
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$imgSrc = $image->getAttribute('src');
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// Returns the image src
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return $imgSrc;
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}
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return false;
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}
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}
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