使用CodeIgniter创建XML

Question

I'm using this code in Codeigniter to generate XML:

public function get_cuisine()
{
    $this->load->dbutil();
    $sql = "select * from cuisine";
    $query = $this->db->query($sql);
    $config = array (
        'root'    => 'root',
        'element' => 'element',
        'newline' => "
",
        'tab'     => "\t"
    );
    echo $this->dbutil->xml_from_result($query, $config);   
}   

But this shows the general print format. How can I get it to show as an XML type page?

Answer 1

You'll need to set XML headers if you want to output the file directly:

Using the Codeigniter Output class:

$xml = $this->dbutil->xml_from_result($query, $config);
$this->output->set_content_type('text/xml');
$this->output->set_output($xml); 

Or you can use plain PHP to set the headers:

header('Content-type: text/xml');
echo $this->dbutil->xml_from_result($query, $config);

Or you can use the CI download helper:

$xml = $this->dbutil->xml_from_result($query, $config);
$this->load->helper('download');
force_download('myfile.xml', $xml);

Or write it to a file with the file helper:

$xml = $this->dbutil->xml_from_result($query, $config);
$this->load->helper('file');
$file_name = '/path/to/myfile.xml';
write_file($file_name, $xml);
// Optionally redirect to the file you (hopefully) just created
redirect($file_name);