Description:
------------
Hi.

I might be widly wrong but I would have thought that json_decode would quite happily reverse a json_encode.

This seems to work fine for arrays and null (not tested with objects), but doesn't work at all with strings, integers or booleans.

Though I think the NULL working is just a fluke.

I can allow for the integer to not match as there is no type  info as far as I can tell.

The documentation DOES say that ...

"Returns a string containing the JSON representation of value. 

Parameters
value 
The value being encoded. Can be __any__ type except a resource. 

Return Values
Returns a JSON encoded string on success."

Note __any__ type.


Amendment after trying to submit bug : I see that bug#38440 relates to this. And as this has been fixed in CVS, then I suspect this is now a documentation issue.

Reproduce code:
---------------
<?php
$a_Originals = array
	(
	'SimpleString' => 'This is a string',
	'Array' => array ('a'=>1,'b'=>2,'c'=>3,'d'=>4,'e'=>5),
	'Integer' => 1234,
	'Boolean_True' => True,
	'Boolean_False' => False,
	'NULL' => NULL,
	);

foreach($a_Originals as $s_Type => $m_Data)
	{
	$s_JS_Encoded = json_encode($m_Data);
	$m_JS_Decoded_Array = json_decode($s_JS_Encoded, True);
	echo "\n========================================\nEncoding $s_Type : ";
	var_dump($m_Data);
	echo "Encoded : ";
	var_dump($s_JS_Encoded);
	echo "Decoded : ";
	var_dump($m_JS_Decoded_Array);
	echo (serialize($m_Data) === serialize($m_JS_Decoded_Array)) ? "\nMatches\n" : "\n**** DOES NOT MATCH ****\n";
	}
?>

Expected result:
----------------
========================================
Encoding SimpleString : string(16) "This is a string"
Encoded : string(18) ""This is a string""
Decoded : string(16) "This is a string"

Matches

========================================
Encoding Array : array(5) {
  ["a"]=>
  int(1)
  ["b"]=>
  int(2)
  ["c"]=>
  int(3)
  ["d"]=>
  int(4)
  ["e"]=>
  int(5)
}
Encoded : string(31) "{"a":1,"b":2,"c":3,"d":4,"e":5}"
Decoded : array(5) {
  ["a"]=>
  int(1)
  ["b"]=>
  int(2)
  ["c"]=>
  int(3)
  ["d"]=>
  int(4)
  ["e"]=>
  int(5)
}

Matches

========================================
Encoding Integer : int(1234)
Encoded : string(4) "1234"
Decoded : string(1234)

**** DOES NOT MATCH ****

========================================
Encoding Boolean_True : bool(true)
Encoded : string(4) "true"
Decoded : bool(true)

Matches

========================================
Encoding Boolean_False : bool(false)
Encoded : string(5) "false"
Decoded : bool(false)

Matches

========================================
Encoding NULL : NULL
Encoded : string(4) "null"
Decoded : NULL

Matches

Actual result:
--------------
========================================
Encoding SimpleString : string(16) "This is a string"
Encoded : string(18) ""This is a string""
Decoded : NULL

**** DOES NOT MATCH ****

========================================
Encoding Array : array(5) {
  ["a"]=>
  int(1)
  ["b"]=>
  int(2)
  ["c"]=>
  int(3)
  ["d"]=>
  int(4)
  ["e"]=>
  int(5)
}
Encoded : string(31) "{"a":1,"b":2,"c":3,"d":4,"e":5}"
Decoded : array(5) {
  ["a"]=>
  int(1)
  ["b"]=>
  int(2)
  ["c"]=>
  int(3)
  ["d"]=>
  int(4)
  ["e"]=>
  int(5)
}

Matches

========================================
Encoding Integer : int(1234)
Encoded : string(4) "1234"
Decoded : NULL

**** DOES NOT MATCH ****

========================================
Encoding Boolean_True : bool(true)
Encoded : string(4) "true"
Decoded : NULL

**** DOES NOT MATCH ****

========================================
Encoding Boolean_False : bool(false)
Encoded : string(5) "false"
Decoded : NULL

**** DOES NOT MATCH ****

========================================
Encoding NULL : NULL
Encoded : string(4) "null"
Decoded : NULL

Matches