I am trying to return an array object to my Jquery ajax call, but it seems to return as a String with Array length =1
PHP code:
$results = mysqli_query($link, $sql);
if ($results->num_rows > 0) {
while ($row = $results->fetch_assoc()) {
$array = array($row['eventDate'], $row['time'] ,['data' => $row['time']]) ;
echo json_encode($array) ;
}
} else {
echo "0 results";
}
Response in Developer tools shows:
["12_03_2015","0:00:00",{"data":"0:00:00"}]["12_03_2015","0:00:00",{"data":"0:00:00"}]["12_03_2015","0:00:00",{"data":"0:00:00"}]
My Ajax Call:
function trend(data){
$.ajax({
url: "trendData.php",
cache: true,
type: "POST",
data: {arr:data},
success: function (data) {
originalData=[];
originalData.push(data)
trender(data)
}
});
}
In the Preview window for Network, it shows an Array:
I cannot get an array of , in this example, 3 objects and get the array.length of 3
Any help will be much appreciated.
You should collect all your data and return it as one json result and add a correct http-header (suggested by @Flosculus) so that the json format will be recognized:
$results = mysqli_query($link, $sql);
$data = array();
if ($results->num_rows > 0) {
while ($row = $results->fetch_assoc()) {
$data[] = array($row['eventDate'], $row['time'] ,['data' => $row['time']]) ;
}
header('Content-Type: application/json');
echo json_encode($data) ;
} else {
echo "0 results";
}
I think you have to use JSON.parse() , if you're using jquery so your js script will look like
$.ajax({
url: "trendData.php",
cache: true,
type: "POST",
data: {arr:data},
success: function (data) {
var data = JSON.parse(data);
//see length of array
console.log(data.length);
}
});
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