json.php 2.88 KB
Newer Older
Prosper De Laure's avatar
Prosper De Laure committed
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
<?php

/*
 * Copyright (C) 2015 Maarch
 *
 * This file is part of Laabs.
 *
 * Laabs is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Laabs is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Laabs.  If not, see <http://www.gnu.org/licenses/>.
 */

namespace core\Encoding;

/**
 * Json encoder/decoder
 * 
 * @package Laabs
 * @author  Cyril Vazquez (Maarch) <cyril.vazquez@maarch.org>
 */
class json
{

    /**
     * Decode a json contents into an associative array of parameters
Cyril Vazquez's avatar
Cyril Vazquez committed
35
     * @param string $params
Prosper De Laure's avatar
Prosper De Laure committed
36
37
38
     * 
     * @return mixed
     */
Cyril Vazquez's avatar
Cyril Vazquez committed
39
    public static function decode($params)
Prosper De Laure's avatar
Prosper De Laure committed
40
    {
Cyril Vazquez's avatar
Cyril Vazquez committed
41
        $params = \json_decode($params);
Prosper De Laure's avatar
Prosper De Laure committed
42
        
Cyril Vazquez's avatar
Cyril Vazquez committed
43
44
        if (is_object($params)) {
            $params = get_object_vars($params);
Prosper De Laure's avatar
Prosper De Laure committed
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
        }
        
        return $params;
    }

    /**
     * Encode data into json string
     * @param mixed $data
     * 
     * @return string
     */
    public static function encode($data)
    {
        $jsonString = \json_encode($data, \JSON_PRETTY_PRINT + \JSON_UNESCAPED_SLASHES + \JSON_UNESCAPED_UNICODE);

        if ($jsonString === false) {
            return false;
        }

        switch (json_last_error()) {
            case JSON_ERROR_NONE:
                return $jsonString;

            case JSON_ERROR_DEPTH:
                $message = 'The maximum stack depth has been exceeded';
                break;
            case JSON_ERROR_STATE_MISMATCH:
                $message = 'Invalid or malformed JSON';
                break;
            case JSON_ERROR_CTRL_CHAR:
                $message = 'Control character error, possibly incorrectly encoded';
                break;
            case JSON_ERROR_SYNTAX:
                $message = 'Syntax error';
                break;
            case JSON_ERROR_UTF8:
                $message = 'Malformed UTF-8 characters, possibly incorrectly encoded';
                break;
            case JSON_ERROR_RECURSION:
                $message = 'One or more recursive references detected in the value to be encoded';
                break;
            case JSON_ERROR_INF_OR_NAN:
                $message = 'One or more NAN or INF values in the value to be encoded';
                break;
            case JSON_ERROR_UNSUPPORTED_TYPE:
                $message = 'A value of a type that cannot be encoded was given';
                break;
            default:
                $message = 'Unknown error';
        }

        trigger_error("Error encoding JSON: " . $message, E_USER_ERROR);
    }

}