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F1047549
json_helper.php
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Created
Mon, Jun 30, 1:27 AM
Size
4 KB
Mime Type
text/x-php
Expires
Wed, Jul 2, 1:27 AM (4 h, 56 m)
Engine
blob
Format
Raw Data
Handle
677355
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rINP In-Portal
json_helper.php
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<?php
/**
* @version $Id: json_helper.php 12306 2009-08-17 02:35:55Z dmitrya $
* @package In-Portal
* @copyright Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
* @license GNU/GPL
* In-Portal is Open Source software.
* This means that this software may have been modified pursuant
* the GNU General Public License, and as distributed it includes
* or is derivative of works licensed under the GNU General Public License
* or other free or open source software licenses.
* See http://www.in-portal.net/license/ for copyright notices and details.
*/
defined
(
'FULL_PATH'
)
or
die
(
'restricted access!'
);
class
JSONHelper
extends
kHelper
{
// var $match = Array ('\\', "\n", "\t", "\r", "\b", "\f", '"');
// var $replace = Array ('\\\\', '\\n', '\\t', '\\r', '\\b', '\\f', '\"');
// \x{2028} is some strange char found in GTA responses... it breaks javascript
var
$match
=
Array
(
'/
\\\\
/u'
,
'/
\\
"/u'
,
'/
\\
t/u'
,
'/
\\
n/u'
,
'/
\\
r/u'
,
'/
\\
x{2028}/u'
);
var
$replace
=
Array
(
'
\\\\\\\\
'
,
'
\\
"'
,
'
\\
t'
,
'
\\
n'
,
'
\\
r'
,
''
);
/**
* Object constructor
*
* @return JSONHelper
*/
function
JSONHelper
()
{
}
/**
* Parse structure to JSON
*
* @param mixed $data
* @return string
*/
function
parse
(
$data
)
{
return
'('
.
$this
->
encode
(
$data
).
')'
;
}
/**
* Converts PHP variable to JSON string
* Can convert any PHP variable with any content to correct JSON structure
*
* @param mixed $data Data to convert
* @return string
*/
function
encode
(
$data
)
{
$type
=
$this
->
getType
(
$data
);
switch
(
$type
)
{
case
'object'
:
$data
=
'{'
.
$this
->
processData
(
$data
,
$type
).
'}'
;
break
;
case
'array'
:
$data
=
'['
.
$this
->
processData
(
$data
,
$type
).
']'
;
break
;
default
:
if
(
is_int
(
$data
)
||
is_float
(
$data
))
{
$data
=
(
string
)
$data
;
}
elseif
(
is_string
(
$data
))
{
$data
=
'"'
.
$this
->
escape
(
$data
).
'"'
;
}
elseif
(
is_bool
(
$data
))
{
$data
=
$data
?
'true'
:
'false'
;
}
else
{
$data
=
'null'
;
}
}
return
$data
;
}
/**
* Enter description here...
*
* @param unknown_type $input
* @param unknown_type $type
* @return unknown
*/
function
processData
(
$data
,
$type
)
{
$output
=
Array
();
// If data is an object - it should be converted as a key => value pair
if
(
$type
==
'object'
){
foreach
(
$data
as
$key
=>
$value
)
{
$output
[]
=
'"'
.
$key
.
'": '
.
$this
->
encode
(
$value
);
}
}
else
{
foreach
(
$data
as
$key
=>
$value
)
{
$output
[]
=
$this
->
encode
(
$value
);
}
}
return
implode
(
','
,
$output
);;
}
/**
* Function determines type of variable
*
* @param unknown_type $data
* @return unknown
*/
function
getType
(&
$data
)
{
if
(
is_object
(
$data
))
{
$type
=
'object'
;
}
elseif
(
is_array
(
$data
))
{
// If array is assoc it should be processed as an object
if
(
$this
->
is_assoc
(
$data
))
{
$type
=
'object'
;
}
else
{
$type
=
'array'
;
}
}
elseif
(
is_numeric
(
$data
))
{
$type
=
'number'
;
}
elseif
(
is_string
(
$data
))
{
$type
=
'string'
;
}
elseif
(
is_bool
(
$data
))
{
$type
=
'boolean'
;
}
elseif
(
is_null
(
$data
))
{
$type
=
'null'
;
}
else
{
$type
=
'string'
;
}
return
$type
;
}
/**
* Function determines if array is associative
*
* @param array $array
* @return bool
*/
function
is_assoc
(
$array
)
{
// Arrays are defined as integer-indexed arrays starting at index 0, where
// the last index is (count($array) -1); any deviation from that is
// considered an associative array, and will be encoded as such (from Zend Framework).
return
!
empty
(
$array
)
&&
(
array_keys
(
$array
)
!==
range
(
0
,
count
(
$array
)
-
1
));
}
/**
* Escapes special characters
* Function escapes ", \, /, \n and \r symbols so that not to cause JavaScript error or
* data loss
*
* @param string $string
* @return string
*/
function
escape
(
$string
)
{
$string
=
preg_replace
(
$this
->
match
,
$this
->
replace
,
$string
);
return
$string
;
// Escape certain ASCII characters:
// 0x08 => \b
// 0x0c => \f
// return str_replace(array(chr(0x08), chr(0x0C)), array('\b', '\f'), $string);
}
}
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