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Easily readable numbers
<?php
/**
* Numbers more readable for humans
*
* It intends to change numbers as 1000 as 1K or 1200000 as 1.2M
*
* This code is heavly base in this one: https://gist.github.com/RadGH/84edff0cc81e6326029c
*
* How to use \NumberFormat::readable(1000);
*/
class NumberFormat
{
/** @var array ['suffix' => 'threshold'] */
private const THRESHOLDS = [
'' => 900,
'K' => 900000,
'M' => 900000000,
'B' => 900000000000,
'T' => 90000000000000,
];
/** @var string */
private const DEFAULT = '900T+';
/**
* @param float $value
* @param int $precision
* @return string
*/
static function readable(float $value, int $precision = 1): string
{
foreach (self::THRESHOLDS as $suffix => $threshold) {
if ($value < $threshold) {
return self::format($value, $precision, $threshold, $suffix);
}
}
return self::DEFAULT;
}
/**
* @param float $value
* @param int $precision
* @param int $threshold
* @param string $suffix
* @return string
*/
static private function format(float $value, int $precision, int $threshold, string $suffix): string
{
$formattedNumber = number_format($value / ($threshold / self::THRESHOLDS['']), $precision);
$cleanedNumber = (strpos($formattedNumber, '.') === false)
? $formattedNumber
: rtrim(rtrim($formattedNumber, '0'), '.');
return $cleanedNumber . $suffix;
}
}
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