Question

如果我在浏览器中解析这个URL，它会给我XML，但当我把它放在我的代码中时，它会显示空数组

https://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20csv%20where%20url%3D%22http%3A%2F%2Ffinance.yahoo.com%2Fd%2Fquotes.csv%3Fe%3D.csv%26f%3Dc4l1%26s%3DUSDINR%3DX%2CTRYINR%3DX%2CSARINR%3DX%2CEURINR%3DX%22&diagnostics=true

我的代码就像这样

public function fetch_Currency (){ 

            $this->url="https://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20csv%20where%20url%3D%22http%3A%2F%2Ffinance.yahoo.com%2Fd%2Fquotes.csv%3Fe%3D.csv%26f%3Dc4l1%26s%3DUSDINR%3DX%2CTRYINR%3DX%2CSARINR%3DX%2CEURINR%3DX%22&diagnostics=true";
            $this->handle =  file_get_contents($this->url);

            if ($this->handle) {
                    $p = xml_parser_create();
                    xml_parse_into_struct($p, $this->result, $this->xml_val, $this->xml_index);
                    xml_parser_free($p);
        }
    }

public function get_exchange(){
        echo "<pre>";
        var_dump($this->xml_val);
        echo "</pre>";
    }

Answer 1

这是在您的示例中解析XML的简单方法，并且可以访问元素：

$url = "http://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20csv%20where%20url%3D%22http%3A%2F%2Ffinance.yahoo.com%2Fd%2Fquotes.csv%3Fe%3D.csv%26f%3Dc4l1%26s%3DUSDINR%3DX%2CTRYINR%3DX%2CSARINR%3DX%2CEURINR%3DX%22&diagnostics=true";
$xml = simplexml_load_file($url);

//echo first currency
echo $xml->results->row[0]->col1;

//whole document tree
print_r($xml);

XML无法解析

1 个答案: