PEAR_Config::deleteChannel PHP Method

    function deleteChannel($channel)
    {
        $ch = strtolower($channel);
        foreach ($this->configuration as $layer => $data) {
            if (isset($data['__channels']) && isset($data['__channels'][$ch])) {
                unset($this->configuration[$layer]['__channels'][$ch]);
            }
        }
        $this->_channels = array_flip($this->_channels);
        unset($this->_channels[$ch]);
        $this->_channels = array_flip($this->_channels);
    }