Vendor/langcode-conv/zendframework/zend-filter/src/StringTrim.php
public function setCharList($charList)
    {
        if (! strlen($charList)) {
            $charList = null;
        }

        $this->options['charlist'] = $charList;

        return $this;
    }
public function setCharList($charList)
    {
        if (! strlen($charList)) {
            $charList = null;
        }

        $this->options['charlist'] = $charList;

        return $this;
    }
public function setCharList ( $ charList ) { if ( ! strlen ( $ charList ) ) { $ charList = null ; } $ this -> options [ 'charlist' ] = $ charList ; return $ this ; }
Sets the charList option

@param  string $charList
@return self Provides a fluent interface
Sets the charList option