how to get data in controller using codeigniter 3 framework
i have code in ci3 controller like this:
public function ajax_list()
{
$list = $this->thesis_title->get_datatables();
$data = array();
$no = $_POST['start'];
$text1 = "Detection of student assignments based on document.";
$text2 ="test program simple levenshtein distance";
$distance=levenshtein($text1, $text2);
foreach ($list as $text_title) {
$no++;
$row = array();
$row[] = $no;
$row[] = $title_text->id_title;
$row[] = $title_text->title;
$row[] = $distance;
$data[] = $row;
}
$output = array(
"draw" => $_POST['draw'],
"recordsTotal" => $this->title_thesis->count_all(),
"recordsFiltered" => $this->title_thesis->count_filtered(),
"data" => $data,
);
//output to json format
echo json_encode($output);
}
what I want to do is retrieve the title data from the database and assign the value to the $text1 variable
Related
when i want order column similarity from Levenshtein calculation result but i get error in ajax_list response
Type: mysqli_sql_exception
Message: Unknown column 'similarity' in 'order clause'
i have code in controller codeigniter3 like this
public function ajax_list()
{
$list = $this->article->get_datatables();
$data = array();
$no = $_POST['start'];
$searchinput=$_POST['search']['value'];
foreach ($list as $article) {
$no++;
$row = array();
$row[] = $no;
$row[] = $article->title;
$text1 = $row[2];
$text2 = $searchinput;
$similarity = levenshtein($text1, $text2) / max(strlen($text1), strlen($text2));
$result_similarity=(1 - $similarity) * 100;
$row[] = $result_similarity;
$data[] = $row;
}
$output = array(
"draw" => $_POST['draw'],
"recordsTotal" => $this->article->count_all(),
"recordsFiltered" => $this->article->count_filtered(),
"data" => $data,
);
//output to json format
echo json_encode($output);
}
and i have code in models like this
var $table = 'article';
var $column_order = array(null,'title','result_similarity'); //set column field database for datatable orderable
var $column_search = array('title'); //set column field database for datatable searchable
var $order = array('title' => 'asc'); // default order
I'm a little confused, and I need help.
I have a foreach loop in my code below. I need to put the foreach loop into the $data = array('image' => $final_image);
How can i put foreach loop in array ? Anyone can help me please.
$getImages = isset($GetNewMessageU['imageid']) ? $GetNewMessageU['imageid'] : NULL;
$ExploreImage = explode(",", $getImages);
$CountExplodes=count($ExploreImage);
foreach($ExploreImage as $a) {
$newdata=$Post->Post_GetUploadChatImageID($a);
if($newdata){
$final_image=$base_url."uploads/images/".$newdata['uploaded_image'];
}
echo $final_image;
}
if($GetNewMessageU){
$json = array();
$data = array(
'image' => $final_image,
);
$result = json_encode( $data );
echo preg_replace('/,\s*"[^"]+":null|"[^"]+":null,?/', '', $result);
}
$getImages = isset($GetNewMessageU['imageid']) ? $GetNewMessageU['imageid'] : NULL;
$ExploreImage = explode(",", $getImages);
$CountExplodes=count($ExploreImage);
// Create an array to store final images
$final_images = [];
foreach($ExploreImage as $a) {
$newdata=$Post->Post_GetUploadChatImageID($a);
if($newdata){
$final_image=$base_url."uploads/images/".$newdata['uploaded_image'];
// Save the image if its new data.
$final_images[]= $final_image;
}
}
if($GetNewMessageU){
$json = array();
$data = array(
'image' => $final_images, // We pass the final images array
);
$result = json_encode( $data );
echo preg_replace('/,\s*"[^"]+":null|"[^"]+":null,?/', '', $result);
}
Made things a bit more verbose.
First define the array.
Then in the if statement add element to the array.
$getImages = isset($GetNewMessageU['imageid']) ? $GetNewMessageU['imageid'] : NULL;
$ExploreImage = explode(",", $getImages);
$CountExplodes=count($ExploreImage);
$final_images = array(); // Define object as array
foreach($ExploreImage as $a) {
$newdata=$Post->Post_GetUploadChatImageID($a);
if($newdata){
$final_image=$base_url."uploads/images/".$newdata['uploaded_image'];
$final_images[] = array('image' => $final_image); // Will create new array item
}
echo $final_image;
}
if($GetNewMessageU){
$json = array();
$data = array(
'image' => $final_image,
);
$result = json_encode( $data );
echo preg_replace('/,\s*"[^"]+":null|"[^"]+":null,?/', '', $result);
}
I want to send nested JSON array.Which contain following format.
${"posts":[{
"abc":"123",
"xyz":"123",
"pro":[{
"name":"Brinjal",
"qty":"500 gms"
},
{
"name":"Brinjal",
"qty":"500 gms"
}]
}]
}
Here is my php code:
$rows = $stmt->fetchAll();
if ($rows) {
$order["posts"] = array();
foreach ($rows as $row) {
$post = array();
$post["order_id"] = $row["order_id"];
$post["order_totalamount"] = $row["order_totalamount"];
$post["address"] = $row["address"];
$post["pincode"] = $row["pincode"];
$post["delivery_timeslot"] = $row["delivery_timeslot"];
$post["order_date"] = $row["order_date"];
$query1= "query";
$rows1 = $stmt->fetchAll();
if ($rows1) {
foreach ($rows1 as $row1) {
$query2= "query";
$rows2 = $stmt->fetchAll();
$post["product"] = array();
if ($rows2) {
$products = array();
foreach ($rows2 as $row2) {
$products["product_name"]=$row2["product_name"];
$products["prod_qty"] = $row2["product_minquantity"];
}
array_push($post["product"],$products);
echo json_encode($products);
}
}
}
array_push($order["posts"], $post);
}
echo json_encode($order);
}
From above code I got result:
$ {"posts":
[{
"order_id":"18",
"order_totalamount":"40",
"address":"2, Chetan Society, Vadodara",
"pincode":"390023",
"delivery_timeslot":"Zone wise delivery",
"order_date":"2016-03-18 17:50:53",
"product":[{"product_name":"Brinjal","prod_qty":"500 gms"}]
}]
}
But my actual product array is:
${"product_name":"Banana","prod_qty":"1 Kg"}{"product_name":"Brinjal","prod_qty":"500 gms"}
Kindly help out. I am stuck on it. tried a lot but did not get success.
In
foreach ($rows2 as $row2) {
$products["product_name"]=$row2["product_name"];
$products["prod_qty"] = $row2["product_minquantity"];
}
You overwrite $products["product_name"]and $products["prod_qty"] with the values of the last $row2.
The line {"product_name":"Banana","prod_qty":"1 Kg"}{"product_name":"Brinjal","prod_qty":"500 gms"} actually consists of two echo's:
{"product_name":"Banana","prod_qty":"1 Kg"}
{"product_name":"Brinjal","prod_qty":"500 gms"}
But you don't see the difference. I suggest echoing a string in-between them or use something like var_dump() to see how many values you're echoing.
You should do something like:
for ($i = 0; $i < count($rows2); $i++) {
$products[$i]["product_name"]=$rows2[$i]["product_name"];
$products[$i]["prod_qty"] = $rows2[$i]["product_minquantity"];
}
This will result in: [{"product_name":"Banana","prod_qty":"1 Kg"},{"product_name":"Brinjal","prod_qty":"500 gms"}]
FYI $array[] = has the same rsults as array_push(), but had less overhead of calling array_push().
EDIT:
Below a complete example since it doesn't seem to workout for you:
//Demo $order
$order = array (
'posts' =>
array (
0 =>
array (
'order_id' => '18',
'order_totalamount' => '40',
'address' => '2, Chetan Society, Vadodara',
'pincode' => '390023',
'delivery_timeslot' => 'Zone wise delivery',
'order_date' => '2016-03-18 17:50:53',
),
),
);
//Demo $rows2
$rows2 = array(
array(
'product_name' => 'banana',
'product_minquantity' => '1 Kg'
),
array(
'product_name' => 'Brinjal',
'product_minquantity' => '500 gms'
)
);
$post['product'] = array();
if ($rows2) {
$products = array();
for ($i = 0; $i < count($rows2); $i++) {
$products[$i]['product_name'] = $rows2[$i]['product_name'];
$products[$i]['prod_qty'] = $rows2[$i]['product_minquantity'];
}
$post['product'] = $products;
echo json_encode($products); //[{"product_name":"banana","prod_qty":"1 Kg"},{"product_name":"Brinjal","prod_qty":"500 gms"}]
}
//$order['posts'][] = $post;
$order['posts'][0] = $order['posts'][0] + $post;
//In this example I only have 1 item in $order['posts'] so I know to add to key 0.
//In your case you need to know which key of $rows1 you need to do the adding.
//Change the foreach loop of $rows to a for loop as well so you can define your own keynames ($i).
echo '<br>==================================================================<br>';
echo json_encode($order);
/*
{
"posts":[
{
"order_id":"18",
"order_totalamount":"40",
"address":"2, Chetan Society, Vadodara",
"pincode":"390023",
"delivery_timeslot":"Zone wise delivery",
"order_date":"2016-03-18 17:50:53",
"product":[
{
"product_name":"banana",
"prod_qty":"1 Kg"
},
{
"product_name":"Brinjal",
"prod_qty":"500 gms"
}
]
}
]
}
*/
this is my code on a php page connected to mysql server.
$temp = array();
while($row = mysqli_fetch_assoc($result)) {
$temp[] = $row;
}
echo json_encode($temp);
The output is:
[{"column1":"1448741941","column2":"951"},{"column1":"1448747281","column2":"862"}]
That's is including the column title + data, and i wanna know how can i get only datas, like
[[1448741941,951],[1448747281,862]]
Thanks for the help!
Here is the quick answer, send in an array with the data only:
$temp = array();
while($row = mysqli_fetch_assoc($result)) {
$temp[] = array( $row['column1'], $row['column2'] );
}
echo json_encode($temp);
Edit You might actually whant this too JSON_NUMERIC_CHECK:
$temp = array();
while($row = mysqli_fetch_assoc($result)) {
$temp[] = array( $row['column1'], $row['column2'] );
}
echo json_encode($temp, JSON_NUMERIC_CHECK);
Another way is this:
$temp[] = array(
intval( $row['column1'] ),
intval( $row['column2'] ) );
I want to acheive something simliar to this adding elements onto an array but when I use this methods two nodes get created in the json element. I only want one node with all the entires within that also can you name nodes ie Properties.
$json = array();
while($row = mysql_fetch_assoc($sth)) {
$json['name'] = $row['name'];
$json['id'] = $row['id'];
$data[] = $json;
}
$custom = array('name'=>'foo', 'id' => 'bar');
$data[] = $custom;
Try this code array_push is better option here,
<?php
$json = array();
while($row = mysql_fetch_assoc($sth)) {
$temp = array();
$temp = array('name' => $row['name'], 'id' => $row['id']);
array_push($json, $temp);
}
$custom = array('name'=>'foo', 'id' => 'bar');
array_push($json,$custom);
?>