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All-purpose byte unit conversion function

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Release： 2016-07-25 08:49:50
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Capacity unit calculation supports defining the decimal retention length; defining the starting and target units, or automatically carrying according to 1024
                 
                                                                                                                                                                                                                                                                                                                  


class Util {
    /**
  1.           * Capacity unit calculation, supports the definition of decimal retention length; defines the starting and target units, or automatically carries by 1024
  2.                                                                                                                                                                                   ’ Capacity unit’s Bytes
  3. * @param type $decimals, the number of digits retained after the decimal point, one digit is reserved by default
  4. * @param type $targetUnit, the target unit of conversion, automatic carry by default
  5. * @return type Returns the result with units that meets the requirements
  6. */
  7. static function fileSizeConv($size, $unit = 'B', $decimals = 1, $targetUnit = 'auto') {
  8. $units = array ('B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB');
  9.              $theUnit = array_search(strtoupper($unit), $units); //Initial unit Which
  10.                            // Determine whether to calculate automatically,
  11.                                                                                                                                                                                                    ;= 1024) {
  12.                                                                                                         $size/=1024;
  13.                                         break;                                                                                                                                                                                                                                                                                                                  " "
Related labels：
全能的字节单位转换函数
source：php.cn
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