링크 : https://www.happyjung.com/lecture/3265
echo byteFormat(4096, "B")
4096.00 B
echo byteFormat(8, "B", 2)
8.00 B
echo byteFormat(1, "KB", 5)
0.00098 KB
echo byteFormat(1073741824, "B", 0)
1073741824 B
echo byteFormat(1073741824, "KB", 0)
1048576 KB
echo byteFormat(1073741824, "MB")
1024.00 MB
echo byteFormat(1073741824)
1.00 GB
echo byteFormat(1073741824, "TB", 10)
0.0009765625 TB
echo byteFormat(1099511627776, "PB", 6)
0.000977 PB