php api return json code example

Example 1: php change header to json

<?PHP
$data = /** whatever you're serializing **/;
header('Content-Type: application/json');
echo json_encode($data);

Example 2: php return json data

header('Content-Type: application/json'); 

$colors = array("red","blue","green");
echo json_encode($colors);

Example 3: php json_encode header detail

$array = array();

$array['Name'] = 'Alex';
$array['Age'] = 37;
$array['Admin'] = TRUE;

$array['Contact'] = array
(
  'Site' => "alexwebdevelop.com",
  'Phone' => 123456789,
  'Address' => NULL
);

$array['Tags'] = array('php', 'web', 'dev');

$json = json_encode($array, JSON_PRETTY_PRINT);

echo '<pre>';
echo $json;
echo '</pre>';

Example 4: web api return json example in php

$option = $_GET['option'];

if ( $option == 1 ) {
    $data = [ 'a', 'b', 'c' ];
    // will encode to JSON array: ["a","b","c"]
    // accessed as example in JavaScript like: result[1] (returns "b")
} else {
    $data = [ 'name' => 'God', 'age' => -1 ];
    // will encode to JSON object: {"name":"God","age":-1}  
    // accessed as example in JavaScript like: result.name or result['name'] (returns "God")
}

header('Content-type: application/json');
echo json_encode( $data );