How to send an array of objects in JSON format from PHP

Question

New to php. I am trying to send JSON data to front end in name-value pair. I tried an example which I got here The following is my code fragment which sends the data in JSO

Answer 1

Let's suppose we have this file structure without specific Objects inside :

  {
    "Subjects" : []
  }



//Get your Json file and decode it 
$json = file_get_contents('CdStore/Pagetest.json');
$json_data = json_decode($json,true);

   //Specifiy your Objects like this
$NewArray= array( 'Mathematics' => array(),'Physics' => array());
  //Push the new Objects  
array_push($json_data['Pagess'],$NewArray); 
   //Then encode to json
$array = json_encode($json_data); 
  //If you want to get the preview before saving
print_r($array);  

 //Save your file
file_put_contents('CdStore/Pagetest.json', json_encode($json_data));

As result you have :

 {"Subjects":
     [
       {
        "Mathematics":[],

        "Physics":[]

         }
     ]

  }