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Rename File If Exists

/ Published in: PHP
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  1. function rename_if_exists($dir, $filename) {
  2. 	$ext = strrchr($filename, '.');
  3. 	$prefix = substr($filename, 0, -strlen($ext));
  4.  
  5. 	$i = 0;
  6. 	while(file_exists($dir . $filename)) { // If file exists, add a number to it.
  7. 		$filename = $prefix . ++$i . $ext;
  8. 	}
  9.  
  10. 	return $filename;
  11. }

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