The json_decode Function

The json_decode function converts a string in JSON format into PHP variables. The first parameter of the function accepts a JSON string, the second - a conversion flag (optional), and the third - the recursion depth (optional). By default, the function returns associative arrays.

Syntax

json_decode(string, [assoc = false], [depth = 512], [flags = 0]);

Example

Convert a simple JSON string to a PHP object:

<?php
	$json = '{"a":1,"b":2,"c":3}';
	$res = json_decode($json);
	print_r($res);
?>

Code execution result:

stdClass Object
(
	[a] => 1
	[b] => 2
	[c] => 3
)

Example

Convert a JSON string to an associative array:

<?php
	$json = '{"a":1,"b":2,"c":3}';
	$res = json_decode($json, true);
	print_r($res);
?>

Code execution result:

[
	'a' => 1,
	'b' => 2,
	'c' => 3,
]

Example

Handling invalid JSON:

<?php
	$json = '{"a":1,"b":2,"c":3';
	$res = json_decode($json);
	var_dump($res);
?>

Code execution result:

NULL

The json_decode Function

Syntax

Example

Example

Example

See Also