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PHP JSON Example
JSON Functions
| Function | Description |
| json_encode( ) | Returns the JSON representation of a value |
| json_decode( ) | Decodes a JSON string. |
| json_last_error( ) | Returns the last error occurred. |
PHP json_encode( )
In PHP, json_encode( ) function is used to encode JSON into PHP. In other words we can say that json_encode( ) function convert PHP variables into JSON String.
Syntax
string json_encode(mixed value,[int options=0]
Ex 1
<?php
$array = array('a' => 1, 'b' => 2, 'c' => 3, 'd' => 4, 'e' => 5);
echo json_encode($array);
?>
Output {"a":1,"b":2,"c":3,"d":4,"e":5}
Ex 2
<?php
$array = array("Name"=>"Vineet","Profile"=>"Developer","Mobile"=>"9015501897");
echo json_encode($array);
?>
Output {"Name":"Vineet","Profile":"Developer","Mobile":"9015501897"}
PHP json_decode( )
In PHP json_decode( ) function is used to decode JSON into PHP. In other words we can say that json_decode( ) function convert JSON string into PHP variables.
Syntax
mixed json_decode(string json,[bool assoc = false,[int depth=512]]
Ex 1
<?php
$json1 = '{"a":1,"b":2,"c":3,"d":4,"e":5}';
var_dump(json_decode($json1));
var_dump(json_decode($json1, true));
?>
Output object(stdClass)#1 (5) { ["a"] => int(1) ["b"] => int(2) ["c"] => int(3) ["d"] => int(4) ["e"] => int(5) }array(5) { ["a"] => int(1) ["b"] => int(2) ["c"] => int(3) ["d"] => int(4) ["e"] => int(5) }
Ex 2
<?php
$json2 = '{"Name":"Vineet","Profile":"Developer","Mobile":"9015501897"}';
var_dump(json_decode($json2, true));
?>
Output array(3) { ["Name"]=> string(6) "Vineet" ["Profile"]=> string(9) "Developer" ["Mobile"]=> string(10) "9015501897" }
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