php with json nested array - php

Question

I am working on the application to get a response from the server in JSON format
I need the response in this format
{
"data" :[
{
"cat_id" : "1",
"post_id" : "2",
"sticker_info":[
],
"text_info" : [
{
"font_family" : "arial.otf",
"text" : "MY NAME",
"text_id" : "1",
"txt_color" : "#000000",
"txt_height" : "7.6",
"txt_order" : "1",
"txt_rotation" : "0",
"txt_width" : "96.5",
"txt_x_pos" : "70.2",
"txt_y_pos" : "4.7"
},
what i tried so for
$sql = "SELECT text_id,my_text,text_colour,x_position,y_position,width,height,rotation,text_order,font_family,cat_id,post_id FROM text_info where cat_id='$cat_id'";
$result = $conn->query($sql);
//store the entire response
$response = array();
//the array that will hold the titles and links
$posts = array();
while($row=$result->fetch_assoc()) //mysql_fetch_array($sql)
{
$text_id = $row['text_id'];
$my_text = $row['my_text'];
$text_colour = $row['text_colour'];
$x_position= $row['x_position'];
$y_position= $row['y_position'];
$width = $row['width'];
$height = $row['height'];
$rotation = $row['rotation'];
$text_order = $row['text_order'];
$font_family = $row['font_family'];
$cat_id = $row['cat_id'];
$post_id = $row['post_id'];
$text_info[]=array('text_id'=> $text_id, 'my_text'=> $my_text,'text_colour'=> $text_colour);
$output = array('text_information' => $text_info);
//each item from the rows go in their respective vars and into the posts array
$posts[] = array('text_id'=> $text_id, 'my_text'=> $my_text,'text_colour'=> $text_colour, 'x_position'=> $x_position,'y_position'=> $y_position, 'width'=> $width,'height'=> $height, 'rotation'=> $rotation,'text_order'=> $text_order, 'font_family'=> $font_family,'cat_id'=> $cat_id, 'post_id'=> $post_id
);
array_push($posts,$output);
}
//the posts array goes into the response
$data1=json_encode($posts);
$response['error'] = false;
$response['message'] = 'Data Retrived successfull';
$response['data'] = $data1;
and the output from the above code is
[
{
"text_id":"1"
,"my_text":"25"
,"text_colour":"#682e2e"
,"x_position":"42.5"
,"y_position":"17.5"
,"width":"57.7"
,"height":"29.4"
,"rotation":"0"
,"text_order":"3"
,"font_family":"arial.ttf"
,"cat_id":"1"
,"post_id":"1"
},
{"text_information":[
{"text_id":"1"
,"my_text":"25"
,"text_colour":"#682e2e"
}
]
},
how to get the required result I tried a lot but can't find the solution
I want the tex_information to be inside the array not in an object format that is
shown in top my actual requirement.

Answer 1

This will resolve your issue. add following array in your while loop.
$text_info[]= ['text_id'=> $text_id,
'my_text'=> $my_text,
'text_colour'=> $text_colour,
'x_position'=> $x_position,
'y_position'=> $y_position,
'width'=> $width,
'height'=> $height,
'rotation'=> $rotation,
'text_order'=> $text_order,
'font_family'=> $font_family];
//each item from the rows go in their respective vars and into the posts array
$posts['data'][] = [
'cat_id' =>$cat_id,
"post_id" => "2",
"sticker_info"=>[],
'text_info' => $text_info
];
print_R(json_encode($posts));
Output:
{"data":[{
"cat_id":"1",
"post_id":"2",
"sticker_info":[],
"text_info":[{
"text_id":1,
"my_text":"MY NAME",
"text_colour":"Yello",
"x_position":"70.2",
"y_position":"4.7",
"width":"96.5",
"height":"7.6",
"rotation":"0",
"text_order":"1",
"font_family":"arial.otf"
}]
}]
}

Answer 2

Try this code
$output = array();
while($row=$result->fetch_assoc()) //mysql_fetch_array($sql)
{
$posts=array();
$text_id = $row['text_id'];
$my_text = $row['my_text'];
$text_colour = $row['text_colour'];
$x_position= $row['x_position'];
$y_position= $row['y_position'];
$width = $row['width'];
$height = $row['height'];
$rotation = $row['rotation'];
$text_order = $row['text_order'];
$font_family = $row['font_family'];
$cat_id = $row['cat_id'];
$post_id = $row['post_id'];
$sticker_info[]=array('key'=>'value','key1'=>'value','key2'=>'value');
$text_info[]=array('text_id'=> $text_id,'font_family'=> $font_family,'text'=> $my_text,'txt_color'=> $text_colour,'txt_height'=> $height,'txt_order'=> $text_order,'txt_rotation'=> $rotation,'txt_width'=> $width,'txt_x_pos'=> $x_position,'txt_y_pos'=> $y_position);
$posts['data' = array('cat_id'=>$cat_id,'post_id'=>$post_id,'sticker_info'=>$sticker_info,'text_info'=>$text_info);
$output[] = $posts;
}
$output['error'] = false;
$output['message'] = 'Data Retrived successfull';
echo json_encode($output);
?>