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<?php |
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declare(strict_types=1); |
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namespace AppUtils\FileHelper; |
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use AppUtils\FileHelper; |
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class PathRelativizer |
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{ |
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/** |
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* Makes a path relative using a folder depth: will reduce the |
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* length of the path so that only the amount of folders defined |
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* in the <code>$depth</code> attribute are shown below the actual |
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* folder or file in the path. |
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* |
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* @param string $path The absolute or relative path |
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* @param int $depth The folder depth to reduce the path to |
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* @return string |
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*/ |
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public static function relativizeByDepth(string $path, int $depth=2) : string |
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{ |
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$path = FileHelper::normalizePath($path); |
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$tokens = explode('/', $path); |
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$tokens = array_filter($tokens); // remove empty entries (trailing slash for example) |
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$tokens = array_values($tokens); // re-index keys |
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if(empty($tokens)) { |
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return ''; |
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} |
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// remove the drive if present |
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if(strpos($tokens[0], ':') !== false) { |
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array_shift($tokens); |
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} |
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// path was only the drive |
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if(count($tokens) === 0) { |
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return ''; |
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} |
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// the last element (file or folder) |
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$target = array_pop($tokens); |
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// reduce the path to the specified depth |
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$length = count($tokens); |
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if($length > $depth) { |
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$tokens = array_slice($tokens, $length-$depth); |
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} |
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// append the last element again |
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$tokens[] = $target; |
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return trim(implode('/', $tokens), '/'); |
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} |
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/** |
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* Makes the specified path relative to another path, |
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* by removing one from the other if found. Also |
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* normalizes the path to use forward slashes. |
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* |
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* Example: |
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* |
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* <pre> |
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* relativizePath('c:\some\folder\to\file.txt', 'c:\some\folder'); |
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* </pre> |
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* |
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* Result: <code>to/file.txt</code> |
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* |
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* @param string $path |
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* @param string $relativeTo |
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* @return string |
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*/ |
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public static function relativize(string $path, string $relativeTo) : string |
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{ |
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$path = FileHelper::normalizePath($path); |
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$relativeTo = FileHelper::normalizePath($relativeTo); |
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$relative = str_replace($relativeTo, '', $path); |
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return trim($relative, '/'); |
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} |
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} |
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Mistralys /
application-utils
