php在csv输出文件中插入转义字符

Question

I am using this php code to allow the user to send dojo.enchancedgrid to file and download it to his machine. The procedure works fine, but the output csv file has the escape lines for the quotes. How can I avoid php inserting those for me. The string that is passed to the function(str) is ok, but after passes through the php code is different.

My javascript code:

function exportCsv(){

var g = dijit.byId("grid");
g.exportGrid("csv",{
            writerArgs: {
                separator: ","
            }
            }, function(str){
                alert(str);


                    var form = document.createElement('form');
                    dojo.attr(form, 'method', 'POST');
                    document.body.appendChild(form);
                    dojo.io.iframe.send({
                            url: "csv.php",
                            form: form,
                            method: "POST",
                            content: {exp: str},
                            timeout: 15000
                    });
                    document.body.removeChild(form);

                    }); 

}

My php code:

$time = time();
header("Pragma: public");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Content-type: application/csv");
header("Content-Disposition: attachment; filename=\"grid_$time.csv\"");
$exportedData = $_POST['exp'];
echo $exportedData;

Also the server is inserting some analytics code in the rows as well… Thank you very much for the help guys. Below is the output csv file:

Lon,Lat,Network,RouteId,Measure

-74.18143812,40.62733114,\\"Named Route\\",IN278,1

-73.90131905,40.75932358,\\"Named Route\\",IN278,25

-73.8005193,40.73819062,\\"Named Route\\",IN495,10

-73.82437443,40.79381815,\\"Named Route\\",IN678,12

-73.79087796,40.66589334,\\"Named Route\\",\\"NY 27\\",12

<-- Hosting24 Analytics Code -->

<--End Of Analytics Code -->

Answer 1

1. You can escape the quotes yourself on the client side string (Javascript) and unescape them in PHP - that way you control the whole process.
2. The reason you have the hoster's "Analytics code" is that you're using free hosting (I assume). It's not analytics but ads, added to every http response. On an HTML page they look like ads at the bottom. If you use AJAX, they just get in the way. If you're actually paying for hosting, call your hoster and ask to him to get rid of those.

Answer 2

As zerkms suggested, this is likely due to magic quotes .

Try disabling them.