试图将XML文件解析为PHP中的CSV时的致命错误

Question

我被困在程序上的一些代码上，我试图使用PHP中的函数将XML文档转换为CSV。该函数的代码是：

function createCsv($xml, $f)
    {
        foreach ($xml->children() as $item) 
        {
            $hasChild = (count($item->children()) > 0) ? true : false;
            if (!$hasChild) 
            {
                $put_arr = array($item->getName(), $item);
                fputcsv($f, $put_arr, ',', '"');
            } 
            else 
            {
                createCsv($item, $f);
            }
        }
    }

我在此处的主脚本中调用它：

if (file_exists($FilePath))
        {    
            echo "Converting, please stand by /n";

            $xml = $_FILES;
            $f = fopen('.csv', 'w');
            createCsv($xml, $f);
            fclose($f);
            //calling function to convert the xml file to csv

            $UploadDirectory = $UploadDirectory . basename($_FILES["fileToUpload"]["tmp_name"]);
            if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $UploadDirectory))
            {
                echo "The file has been uploaded and converted. Please click the link below to download it";
                echo '<a href="'.$UploadDirectory.'">'.$File.'</a>';
                //giving link to click and download converted CSV file
            }
            else
            {
                echo "There was a problem uploading and converting the file. Please refresh the page and try again.";
            }
        }

通过XAMPP运行脚本时收到的错误消息是：

Fatal error: Uncaught Error: Call to a member function children() on array in C:\xampp\htdocs\XMLtoCSV\convert.php:4 Stack trace: #0 C:\xampp\htdocs\XMLtoCSV\convert.php(73): createCsv(Array, Resource id #3) #1 {main} thrown in C:\xampp\htdocs\XMLtoCSV\convert.php on line 4

第4行引用是createCSV函数中的foreach语句。我真的很茫然，对PHP非常新。我不得不教自己的PHP，结果不同，任何帮助都将不胜感激。

Answer 1

您将$ _文件作为XML文件，这是不正确的。
$ _文件是上传文件的关联数组。您需要打开文件并读取数据。为此，您可以使用Simplexml_load_file：

$xml = simplexml_load_file($_FILES["fileToUpload"]["tmp_name"]);
createCsv($xml, $f);