src/ClearSaleID/Entity/Request/Phone.php
public function setExtension( $extension )
    {
        if (strlen( $extension ) > 5) {
            throw new InvalidArgumentException( sprintf( 'Extension should be no longer than 5 characters (%s)',
                $extension ) );
        }

        $this->extension = $extension;

        return $this;
    }
public function setExtension( $extension )
    {
        if (strlen( $extension ) > 5) {
            throw new InvalidArgumentException( sprintf( 'Extension should be no longer than 5 characters (%s)',
                $extension ) );
        }

        $this->extension = $extension;

        return $this;
    }
public function setExtension ( $ extension ) { if ( strlen ( $ extension ) > 5 ) { throw new InvalidArgumentException ( sprintf ( 'Extension should be no longer than 5 characters (%s)' , $ extension ) ) ; } $ this -> extension = $ extension ; return $ this ; }
@param  string $extension

@return $this
@param string $extension