用jQuery Ajax发送数组

Question

I have this jquery code:

        var myarr = ["aa","ss","dd"];

        $.ajax({
            url: "proces.php",
            data: "arr="+myarr,
            type: "POST",
            success: function () {
                alert("data is send");
            }
        });

I see message data is send but in proces.php file I have this code

$str = '';
foreach ($_POST['arr'] as $k=>$v) {
    $str = $str.$v;
}

$hand = fopen("t.txt","w+");
fwrite($hand,$str);

and in file t.txt nothing is written, please tell where I wrong ?

Answer 1

You can send it as:

$.ajax({
    url: "proces.php",

    data: 'arr=' + JSON.stringify({arr: myarr}),

    type: "POST",
    success: function () {
        alert("data is send");
    }
});

And on the server side, you can read it as:

$arr = jsondecode($_POST['arr']);

foreach($x in $arr->arr) {
   // stuff
}