Convert PHP Array To JSON

 JSON stands for JavaScript Object Notation. It consists of a series of key/value pairs. JSON is used to transfer the data between the server and the browser.

 PHP Array will also be converted into JSON. With the help of  PHP json_encode() function.

PHP json_encode()

PHP json_encode() is a built-in function that converts a PHP value to JSON value. Objects in PHP can be converted into JSON by using a function called json_encode(). The json_encode() function returns the string, if the function works.

Syntax - 

json_encode(value, options)

value - Required. Specifies the value to be encoded

options - Optional. Specifies a bitmask (JSON_FORCE_OBJECT, JSON_HEX_QUOT, JSON_HEX_TAG, JSON_HEX_AMP, JSON_HEX_APOS, JSON_INVALID_UTF8_IGNORE, JSON_INVALID_UTF8_SUBSTITUTE, JSON_NUMERIC_CHECK, JSON_PARTIAL_OUTPUT_ON_ERROR, JSON_PRESERVE_ZERO_FRACTION, JSON_PRETTY_PRINT, JSON_UNESCAPED_LINE_TERMINATORS, JSON_UNESCAPED_SLASHES, JSON_UNESCAPED_UNICODE, JSON_THROW_ON_ERROR)

Return value - Returns a JSON encoded string on success. FALSE on failure

Example 1- 

<?php
$fruit= array("Mango", "Banana", "Apple");

echo json_encode($fruit);
?>

Output - 

["Mango","Banana","Apple"]

Example 2-

<?php

$arr = array('Front' => 'Page', 

            'Fruit' => 'Apple', 

            'Tree' => 'Mango', 

            'Developer' => 'PHP'); 

echo json_encode($arr);
?>

Output - 

["Front":"Page","Fruit":"Apple","Tree":"Mango","Developer":"PHP"]