JSON Decode Online in Php | a Step by Step Guide

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JSON Decode Online in Php | a Step by Step Guide

JSON Decode Online in Php | a Step by Step Guide

JSON stands for JavaScript Object Notation. JSON is a standard lightweight data exchange format that is fast and easy to parse and create. JSON, like XML, is a text-based format that is easy for humans and computers to write and understand, but unlike XML, JSON data structures take up less bandwidth than XML versions. JSON is based on two basic structures:

Object

This is defined as a collection of key/value pairs (ie key:value). Each object begins with a left parenthesis { and ends with a right parenthesis } . Multiple key/value pairs are separated by commas.

Array

This is defined as an ordered list of values. An array starts with a left parenthesis [ and ends with a right parenthesis ]. Values ​​are separated by commas. In JSON, keys are always strings, and value can be a string, number, true or false, null, or even an object or array. Strings must be enclosed in double quotes and may contain escape characters such as \n, \t, and \.

A data interchange format is a text format used to exchange or exchange data between different platforms and operating systems. JSON is the most popular. and for web applications. lightweight data exchange format.

Parsing JSON with PHP

JSON data structures are very similar to PHP arrays. PHP has built-in functions for encode and JSON decode online. These functions are json_encode() and json_decode() respectively. Both of these functions only work with UTF-8 encoded string data.

Encoding JSON data in PHP

In PHP, the json_encode() function is used to encode a value in JSON format. The encoded value can be any PHP data type, except for a resource such as a database or file handle. The following example shows how to encode a PHP associative array into a JSON object.

Decoding JSON data in PHP

Decoding JSON data is as simple as encoding it. You can use the PHP json_decode() function to convert a JSON-encoded string to the appropriate PHP data type. The following example shows how to decode or convert a JSON object to a PHP object.

By default, the json_decode() function returns an object. However, you can optionally specify a second $assoc parameter that accepts a boolean value that will be decoded into associative arrays when set to actual JSON objects. This is false by default. Here is an example:

Extracting Values

JSON objects and arrays can also be nested. A JSON object can contain arbitrary other JSON objects, arrays, nested arrays, arrays of JSON objects, and so on. The following example shows how to decode an internal JSON object and print all its values ​​in PHP.