Php on array and Json format

Php on array and Json format

<?php
   $arr = array('a' => 1, 'b' => 2, 'c' => 3, 'd' => 4, 'e' => 5);
   
   print_r($arr);
   print("<br>");
   echo json_encode($arr);
?>
Output Results
Array ( [a] => 1 [b] => 2 [c] => 3 [d] => 4 [e] => 5 )
{"a":1,"b":2,"c":3,"d":4,"e":5}


<?php
$response=array();

 
  $response["success"] = 0;
  $response["message"] = "No product found";
 //print_r($product);
 
 

  print("<br><font color='red'> \$response in array Format </font> <br>");
  //print_r — Prints human-readable information about a variable
  print_r($response);
 
 
  print("<br><br><font color='red'> JSON Format </font> <br>");
        //json_encode — Returns the JSON representation of a value
        //cpnvert array to json format
       
  print json_encode($response);
           
?>
Output Results
$response in array Format 
Array ( [success] => 0 [message] => No product found )

JSON Format 
{"success":0,"message":"No product found"}



Use  $response
 $response=array();
 array_push($response,$product);

<?php
$response=array();

 
 $product = array();
 $product["pid"] = 123;
 $product["name"] = "ABC";
 $product["price"] = 33.0;
 
 $product2 = array();
 $product2["pid"] = 123;
 $product2["name"] = "ABC";
 $product2["price"] = 33.0;
 
 //print_r($product);
 
 
 /*
 Read php manual
 http://php.net/manual/en/function.array-push.php
 array_push() treats array as a stack, and pushes the passed variables onto the end of array. The length of array increases by the number of variables pushed.
 */
 // array of $product was pushed or added on to the end of $reponse array
 
 array_push($response,$product);
 array_push($response,$product2);

        print("<br><font color='red'> \$response in array Format </font> <br>");
        //print_r — Prints human-readable information about a variable
        print_r($response);
        
        print("<br><br><font color='red'> \$response in array Format </font> <br>");
        //add one more field [success] to the $response array
        $response["success"]    =1;
    
        print_r($response);
        print("<br><br><font color='red'> JSON Format </font> <br>");
        //json_encode — Returns the JSON representation of a value
        //cpnvert array to json format
       
        print json_encode($response);
           
?>


Output Results

$response in array Format 
Array ( [0] => Array ( [pid] => 123 [name] => ABC [price] => 33 ) [1] => Array ( [pid] => 123 [name] => ABC [price] => 33 ) )

$response in array Format 
Array ( [0] => Array ( [pid] => 123 [name] => ABC [price] => 33 ) [1] => Array ( [pid] => 123 [name] => ABC [price] => 33 ) [success] => 1 )

JSON Format 
{"0":{"pid":123,"name":"ABC","price":33},"1":{"pid":123,"name":"ABC","price":33},"success":1}


https://www.tutorialspoint.com/php_webview_online.php


Use  $response["products"]

 
 $response["products"] = array();
 array_push($response["products"], $product);




<?php
    $response["products"] = array();
 

 
 
 $product = array();
 $product["pid"] = 123;
 $product["name"] = "ABC";
 $product["price"] = 33.0;
 
 $product2 = array();
 $product2["pid"] = 124;
 $product2["name"] = "DEF";
 $product2["price"] = 88.0;
 
 
 
 array_push($response["products"], $product);
  array_push($response["products"], $product2);
 
     $response["success"] = 1;
        print("<br><font color='red'> \$response in array Format </font> <br>");
        //print_r — Prints human-readable information about a variable
        print_r($response);
 
 
        print("<br><br><font color='red'> JSON Format </font> <br>");
        //json_encode — Returns the JSON representation of a value
        //cpnvert array to json format
       
        print json_encode($response);
           
?>


$response in array Format 
Array ( [products] => Array ( [0] => Array ( [pid] => 123 [name] => ABC [price] => 33 ) [1] => Array ( [pid] => 124 [name] => DEF [price] => 88 ) ) [success] => 1 )

JSON Format 
{"products":[{"pid":123,"name":"ABC","price":33},{"pid":124,"name":"DEF","price":88}],"success":1}



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