invoiceninja/app/Utils/Traits/NumberFormatter.php

<?php

namespace App\Utils\Traits;

/**
 * Class NumberFormatter
 * @package App\Utils\Traits
 */
trait NumberFormatter
{
    
	private function formatValue($value, $precision) : string
	{

        return number_format($this->parseFloat($value), $precision, '.', '');

	}


	/**
     * Parse a float value that may be delimited with either a comma or decimal point
     *
     * @param      string $value  The value
     *
     * @return     float   Consumable float value
     */
    private function parseFloat($value) : float
    {

        // check for comma as decimal separator
        if (preg_match('/,[\d]{1,2}$/', $value)) {
            $value = str_replace(',', '.', $value);
        }

        $value = preg_replace('/[^0-9\.\-]/', '', $value);

        return floatval($value);

    }

}