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39 lines
1.3 KiB
39 lines
1.3 KiB
<?php |
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namespace yii\helpers; |
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class FileHelper extends BaseFileHelper |
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{ |
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public static function getRelativePath($from, $to) |
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{ |
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// some compatibility fixes for Windows paths |
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$from = is_dir($from) ? rtrim($from, '\/') . '/' : $from; |
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$to = is_dir($to) ? rtrim($to, '\/') . '/' : $to; |
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$from = str_replace('\\', '/', $from); |
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$to = str_replace('\\', '/', $to); |
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$from = explode('/', $from); |
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$to = explode('/', $to); |
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$relPath = $to; |
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foreach ($from as $depth => $dir) { |
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// find first non-matching dir |
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if ($dir === $to[$depth]) { |
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// ignore this directory |
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array_shift($relPath); |
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} else { |
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// get number of remaining dirs to $from |
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$remaining = count($from) - $depth; |
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if ($remaining > 1) { |
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// add traversals up to first matching dir |
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$padLength = (count($relPath) + $remaining - 1) * -1; |
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$relPath = array_pad($relPath, $padLength, '..'); |
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break; |
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} else { |
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$relPath[0] = './' . $relPath[0]; |
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} |
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} |
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} |
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return implode('/', $relPath); |
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} |
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}
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