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Online Sandbox for SQL and PHP: Write, Run, Test, and Share SQL Queries and PHP Code
<?php
function ff(int $size) : string {
$units = ['b', 'Kb', 'Mb', 'Gb','Tb'];
$unit = reset ($units);
while ($size > 1024) {
$size = intval($size/ 1024);
$unit = next($units);
}
return $size . $unit;
}
echo ff(12345666666776789);