Resources/PhpOffice/PhpSpreadsheet/Calculation/TextData/Trim.php

<?php

namespace PhpOffice\PhpSpreadsheet\Calculation\TextData;

use PhpOffice\PhpSpreadsheet\Calculation\ArrayEnabled;

class Trim
{
    use ArrayEnabled;

    /**
     * CLEAN.
     *
     * @param mixed $stringValue String Value to check
     *                              Or can be an array of values
     *
     * @return array|string
     *         If an array of values is passed as the argument, then the returned result will also be an array
     *            with the same dimensions
     */
    public static function nonPrintable($stringValue = '')
    {
        if (\is_array($stringValue)) {
            return self::evaluateSingleArgumentArray([self::class, __FUNCTION__], $stringValue);
        }

        $stringValue = Helpers::extractString($stringValue);

        return (string) \preg_replace('/[\\x00-\\x1f]/', '', "$stringValue");
    }

    /**
     * TRIM.
     *
     * @param mixed $stringValue String Value to check
     *                              Or can be an array of values
     *
     * @return array|string
     *         If an array of values is passed as the argument, then the returned result will also be an array
     *            with the same dimensions
     */
    public static function spaces($stringValue = '')
    {
        if (\is_array($stringValue)) {
            return self::evaluateSingleArgumentArray([self::class, __FUNCTION__], $stringValue);
        }

        $stringValue = Helpers::extractString($stringValue);

        return \trim(\preg_replace('/ +/', ' ', \trim("$stringValue", ' ')) ?? '', ' ');
    }
}