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<?php |
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namespace PiedWeb\UrlHarvester; |
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use ForceUTF8\Encoding; |
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use simple_html_dom; |
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class Helper |
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{ |
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public static function clean(string $source) |
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{ |
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return trim(preg_replace('/\s{2,}/', ' ', Encoding::toUTF8($source))); |
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} |
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public static function htmlToPlainText($str, $keepN = false) |
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{ |
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$str = preg_replace('#<(style|script).*</(style|script)>#siU', ' ', $str); |
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$str = preg_replace('#</?(br|p|div)>#siU', "\n", $str); |
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$str = preg_replace('/<\/[a-z]+>/siU', ' ', $str); |
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$str = str_replace(["\r", "\t"], ' ', $str); |
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$str = strip_tags(preg_replace('/<[^<]+?>/', ' ', $str)); |
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if ($keepN) { |
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$str = preg_replace('/ {2,}/', ' ', $str); |
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} else { |
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$str = preg_replace('/\s+/', ' ', $str); |
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} |
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return $str; |
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} |
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public static function removeAccent($str) |
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{ |
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if ($str !== mb_convert_encoding(mb_convert_encoding($str, 'UTF-32', 'UTF-8'), 'UTF-8', 'UTF-32')) { |
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$str = mb_convert_encoding($str, 'UTF-8'); |
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} |
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$str = htmlentities($str, ENT_NOQUOTES, 'UTF-8'); |
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$str = preg_replace('`&([a-z]{1,2})(acute|uml|circ|grave|ring|cedil|slash|tilde|caron|lig);`i', '$1', $str); |
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return $str; |
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} |
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public static function imageToTxt($txt) |
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{ |
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$html = new simple_html_dom(); |
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$html->load($txt); |
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foreach ($html->find('img') as $img) { |
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$alt = isset($img->alt) ? $img->alt : '-'; |
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$alt = substr($alt, 0, 300).(strlen($alt) > 300 ? '~' : ''); |
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$src = isset($img->src) ? '('.$img->src.')' : null; |
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$txt = str_replace($img->outertext, '!['.$alt.']'.$src, $txt); |
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} |
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return $txt; |
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} |
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} |
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PiedWeb /
UrlHarvester
