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<?php |
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/** |
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* This file is part of the IrishDan\ResponsiveImageBundle package. |
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* |
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* (c) Daniel Byrne <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE file that was distributed with this source |
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* code. |
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*/ |
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namespace IrishDan\ResponsiveImageBundle\File; |
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/** |
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* Class FilenameTransliterator |
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* |
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* @package IrishDan\ResponsiveImageBundle\File |
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*/ |
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class FilenameTransliterator implements FilenameTransliteratorInterface |
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{ |
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/** |
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* @var FileToObject |
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*/ |
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protected $fileToObject; |
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/** |
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* FilenameTransliterator constructor. |
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* |
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* @param \IrishDan\ResponsiveImageBundle\File\FileToObject $fileToObject |
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*/ |
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public function __construct(FileToObject $fileToObject) |
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{ |
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$this->fileToObject = $fileToObject; |
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} |
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/** |
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* @param $filename |
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* |
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* @return mixed|string |
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*/ |
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public function transliterate($filename) |
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{ |
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// Sanitize and transliterate |
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$str = strtolower($filename); |
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$str = strip_tags($str); |
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$str = str_replace([' ', '-'], '_', $str); |
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$safeName = preg_replace('/[^a-z0-9-_\.]/', '', $str); |
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// Create unique filename. |
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$i = 1; |
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$nameArray = explode('.', $safeName); |
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while (!$this->isUniqueFilename($safeName)) { |
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$parts = $nameArray; |
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$secondLastIndex = count($parts) - 2; |
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// Add an incremented suffix to the second last part. |
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$parts[$secondLastIndex] = $parts[$secondLastIndex] . '_' . $i; |
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// Stick it all back together |
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$safeName = implode('.', $parts); |
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$i++; |
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} |
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return $safeName; |
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} |
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/** |
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* @param $filename |
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* |
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* @return bool |
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*/ |
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protected function isUniqueFilename($filename) |
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{ |
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$entity = $this->fileToObject->getObjectFromFilename($filename); |
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return empty($entity) ? true : false; |
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} |
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} |
irishdan /
ResponsiveImageBundle
