How to decode JSON objects in Laravel and apply for each loop on that?

The json_decode() method is a PHP built-in function, which helps to convert a JSON object into a PHP object. It takes the input value as a string and returns a readable PHP object

Example 1

Following is an example of the json_decode() method −

$studentobj = '{"Neha":35,"Arbaaz":37,"Rehan":43}';
print_r(json_decode($studentobj));

Output

The output of the above code is −

stdClass Object
(
  [Neha] => 35
  [Arbaaz] => 37
  [Rehan] => 43
)

Let us now loop through the final object that we get from json_decode().

Example 2

The JSON object is given as a string to json_decode(). The $test is now an object which can be looped using foreach as shown below −

$studentobj = '{"Neha":35,"Arbaaz":37,"Rehan":43}';
$test = json_decode($studentobj);
   
foreach( $test as $a => $values) {
   echo $a."=".$values.'<br/>';
}

Output

The output of the above code is −

Neha=35
Arbaaz=37
Rehan=43

Example 3

Let us now try an example with nested data, as shown below −

$Studentdata = '[{
   "id":12,
   "name":"Rehaan Khan",
   "email":"rehaan@gmail.com",
   "age": 35
},

{
   "id":13,
   "name":"Arbaaz",
   "email":"arbaaz@gmail.com",
   "age": 30
}]';

$data = json_decode($Studentdata);
foreach($data as $student) {
   foreach($student as $mykey=>$myValue) {
      echo "$mykey - $myValue </br>";
   }
}

Output

The output of the above code is

id - 12
name - Rehaan Khan
email - rehaan@gmail.com
age - 35
id - 13
name - Arbaaz
email - arbaaz@gmail.com
age - 30

Example 4

The json_decode() function takes in the second parameter as a boolean. If true it gives back an associative array instead of a PHP object. Let us try an example for the same.

$studentobj = '{"Neha":35,"Arbaaz":37,"Rehan":43}';

$data = json_decode($studentobj, true);
print_r($data);

foreach($data as $mykey=>$myValue) {
   echo "$mykey - $myValue ";
}

Output

The output of the above code is −

Array ( [Neha] => 35 [Arbaaz] => 37 [Rehan] => 43 ) Neha - 35
Arbaaz - 37
Rehan - 43