数组未发送所有元素，仅获得第一个

Question

I want to get all posts id from current page after 15 second interval to make server side php query. Php query will find match in Sql with id and if any data find for a particular id's, it will be .append it.

So in my current page have many div with their own dynamic post id like:

<div class="case" data-post-id="111"></div>

<div class="case" data-post-id="222"></div>

<div class="case" data-post-id="333"></div>

<div class="case" data-post-id="anything else dynamic no"></div>

And I want, my javascript will get and sent this ids to a php query for find any match in Sql.

Here my array only got 1st post id. Problem is either my javascript array or php array

My update script: (here var CID cannot get ids, only get first id)

//make array to get id
var CID = []; //get dynamic id 
$('div[data-post-id]').each(function (i) {
    CID[i] = $(this).data('post-id');
});

function addrep(type, msg) {
    CID.forEach(function (id) {
        $("#newreply" + id).append("");
    });
}
var tutid = '<?php echo $tutid; ?>';

function waitForRep() {
    $.ajax({
        type: "GET",
        url: "/server.php",
        cache: false,
        data: {
            tutid: tutid,
            // this way array containing all ID's can be sent:
            cid: CID
        },
        timeout: 15000,
        success: function (data) {
            addrep("postreply", data);
            setTimeout(
            waitForRep,
            15000);
        },
        error: function (XMLHttpRequest, textStatus, errorThrown) {
            setTimeout(
            waitForRep,
            15000);
        }
    });
}

server.php

if($_REQUEST['tutid'] && $_REQUEST['cid']){
    //make array to cid to get id
    foreach($_REQUEST['cid'] as $key => $value){

       $res = mysqli_query($dbh,"SELECT * FROM test WHERE id =".$value." AND page_id=".$_REQUEST['tutid']." ORDER BY id DESC LIMIT 1") or die(mysqli_error($dbh));

        $rows =  mysqli_fetch_assoc($res);  

        $row[] = array_map('utf8_encode', $rows); //line 80
        $data = array();

        $data['id'] = $rows['id']; 
        //etc all

            //do something

if (!empty($data)) {
    echo json_encode($data);
    flush();
    exit(0);
}
} }

Answer 1

Change small code and check it

//make array to get id
var CID = []; //get dynamic id 
$('div[data-post-id]').each(function (i) {
    CID[CID.length] = $(this).data('post-id');
});