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<?php |
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/* |
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* This file is part of dispositif/wikibot application (@github) |
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* 2019-2023 © Philippe M./Irønie <[email protected]> |
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* For the full copyright and MIT license information, view the license file. |
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*/ |
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declare(strict_types=1); |
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namespace App\Domain\Publisher; |
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use App\Domain\Utils\TextUtil; |
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class SeoSanitizer |
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{ |
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/** |
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* Naive SEO sanitization of web page title. |
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* pretty domain name as "google.com" or "google.co.uk" |
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*/ |
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public function cleanSEOTitle(string $prettyDomainName, ?string $title): ?string |
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{ |
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if (empty(trim($title))) { |
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return null; |
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} |
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$title = str_replace(['–','—','\\'],['-','-','/'], $title); // replace em dash with hyphen |
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$seoSegments = $this->extractSEOSegments($title); |
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// No SEO segmentation found |
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if (count($seoSegments) < 2) { |
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return $title; |
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} |
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// remove seo segments containing same words as the website domain name |
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$seoSegmentsFiltered = array_values(array_filter($seoSegments, function ($segment) use ($prettyDomainName) { |
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// strip string after last dot in prettyDomainName : blabla.com => blabla |
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$domainMain = preg_replace('/\.[^.]*$/', '', $prettyDomainName); |
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// strip string if only 2 chars after dot : like in 'blabla.co.uk' |
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$domainMain = preg_replace('/\.[^.]{2}$/', '', $domainMain); |
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$strippedSegment = str_replace([' ', '-'], '', mb_strtolower(TextUtil::stripPunctuation(TextUtil::stripAccents($segment)))); |
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return !empty(trim($segment)) |
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&& false === strpos($strippedSegment, str_replace(['.', '-'], '', $prettyDomainName)) |
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&& false === strpos($strippedSegment, str_replace(['.', '-'], '', $domainMain)); |
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})); |
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if (count($seoSegmentsFiltered) === 0) { |
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return trim($seoSegments[0]); // before filtering |
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} |
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// if only one segment or first segment is long enough, return it |
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if (count($seoSegmentsFiltered) === 1 || mb_strlen($seoSegmentsFiltered[0]) >= 25) { |
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return trim($seoSegmentsFiltered[0]); |
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} |
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// rebuild bestTitle but keep only the first 2 SEO segments |
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return trim($seoSegmentsFiltered[0]) . ' - ' . trim($seoSegmentsFiltered[1]); |
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} |
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private function extractSEOSegments(string $title): array |
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{ |
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$seoSeparator = $this->getSEOSeparator($title); |
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if (null === $seoSeparator) { |
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return [$title]; |
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} |
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return explode($seoSeparator, $title); |
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} |
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private function getSEOSeparator(string $title): ?string |
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{ |
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$title = str_replace(' — ', ' - ', $title); |
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if (strpos($title, ' | ') !== false) { |
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return ' | '; |
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} |
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if (strpos($title, ' - ') !== false) { |
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return ' - '; |
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} |
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if (strpos($title, ' / ') !== false) { |
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return ' / '; |
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} |
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if (strpos($title, ' : ') !== false) { |
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return ' : '; |
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} |
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return null; |
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} |
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} |
Dispositif /
Wikibot
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