Share a byte size Formatting Function

Provides various official and user-released code examples. For code reference, you are welcome to learn a super simple byte Formatting Function.
/**
* Format the byte size
* @ Param number $ size bytes
* @ Param string $ delimiter number and unit Separator
* @ Return string formatted with unit size
* @ Author Madang Miao er
*/
Function format_bytes ($ size, $ delimiter = ''){
$ Units = array ('B', 'kb', 'mb', 'gb', 'tb', 'petab ');
For ($ I = 0; $ size >=1024 & $ I <6; $ I ++) $ size/= 1024;
Return round ($ size, 2). $ delimiter. $ units [$ I];
}

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