src/Bundle/Common/File/FileUpload.php
public function getMaxFileSize(): int
    {
        $iniMax = strtolower(ini_get('upload_max_filesize'));

        if ('' === $iniMax) {
            return PHP_INT_MAX;
        }

        $max = ltrim($iniMax, '+');
        if (0 === strpos($max, '0x')) {
            $max = intval($max, 16);
        } elseif (0 === strpos($max, '0')) {
            $max = intval($max, 8);
        } else {
            $max = (int) $max;
        }

        switch (substr($iniMax, -1)) {
            case 't':
                $max *= 1024;
            // no break
            case 'g':
                $max *= 1024;
            // no break
            case 'm':
                $max *= 1024;
            // no break
            case 'k':
                $max *= 1024;
            // no break
        }

        return $max;
    }
public function getMaxFileSize(): int
    {
        $iniMax = strtolower(ini_get('upload_max_filesize'));

        if ('' === $iniMax) {
            return PHP_INT_MAX;
        }

        $max = ltrim($iniMax, '+');
        if (0 === strpos($max, '0x')) {
            $max = intval($max, 16);
        } elseif (0 === strpos($max, '0')) {
            $max = intval($max, 8);
        } else {
            $max = (int) $max;
        }

        switch (substr($iniMax, -1)) {
            case 't':
                $max *= 1024;
            // no break
            case 'g':
                $max *= 1024;
            // no break
            case 'm':
                $max *= 1024;
            // no break
            case 'k':
                $max *= 1024;
            // no break
        }

        return $max;
    }
Returns the maximum size of an uploaded file as configured in php.ini.

@return int The maximum size of an uploaded file in bytes