From 22134018a96760a4c59fe9c385d3b5c041d88eff Mon Sep 17 00:00:00 2001
From: ftimme <ft@falkotimme.com>
Date: Mon, 14 May 2012 18:22:55 -0400
Subject: [PATCH] - Modified json_encode function for PHP < 5.2.0.
---
interface/lib/classes/functions.inc.php | 84 +++++++++++++++++++++++++++--------------
1 files changed, 55 insertions(+), 29 deletions(-)
diff --git a/interface/lib/classes/functions.inc.php b/interface/lib/classes/functions.inc.php
index 2fe7191..dc21608 100644
--- a/interface/lib/classes/functions.inc.php
+++ b/interface/lib/classes/functions.inc.php
@@ -111,38 +111,64 @@
function json_encode($data) {
if(!function_exists('json_encode')){
- switch ($type = gettype($data)){
- case 'NULL':
- return 'null';
- case 'boolean':
- return ($data ? 'true' : 'false');
- case 'integer':
- case 'double':
- case 'float':
- return $data;
- case 'string':
- return '"' . addslashes($data) . '"';
- case 'object':
- $data = get_object_vars($data);
- case 'array':
- $output_index_count = 0;
- $output_indexed = array();
- $output_associative = array();
- foreach($data as $key => $value){
- $output_indexed[] = $this->json_encode($value);
- $output_associative[] = $this->json_encode($key) . ':' . $this->json_encode($value);
- if($output_index_count !== NULL && $output_index_count++ !== $key){
- $output_index_count = NULL;
- }
+ if(is_array($data) || is_object($data)){
+ $islist = is_array($data) && (empty($data) || array_keys($data) === range(0,count($data)-1));
+
+ if($islist){
+ $json = '[' . implode(',', array_map(array($this, "json_encode"), $data) ) . ']';
+ } else {
+ $items = Array();
+ foreach( $data as $key => $value ) {
+ $items[] = $this->json_encode("$key") . ':' . $this->json_encode($value);
}
- if($output_index_count !== NULL){
- return '[' . implode(',', $output_indexed) . ']';
- } else {
- return '{' . implode(',', $output_associative) . '}';
+ $json = '{' . implode(',', $items) . '}';
+ }
+ } elseif(is_string($data)){
+ # Escape non-printable or Non-ASCII characters.
+ # I also put the \\ character first, as suggested in comments on the 'addclashes' page.
+ $string = '"'.addcslashes($data, "\\\"\n\r\t/".chr(8).chr(12)).'"';
+ $json = '';
+ $len = strlen($string);
+ # Convert UTF-8 to Hexadecimal Codepoints.
+ for($i = 0; $i < $len; $i++){
+ $char = $string[$i];
+ $c1 = ord($char);
+
+ # Single byte;
+ if($c1 <128){
+ $json .= ($c1 > 31) ? $char : sprintf("\\u%04x", $c1);
+ continue;
}
- default:
- return ''; // Not supported
+
+ # Double byte
+ $c2 = ord($string[++$i]);
+ if(($c1 & 32) === 0){
+ $json .= sprintf("\\u%04x", ($c1 - 192) * 64 + $c2 - 128);
+ continue;
+ }
+
+ # Triple
+ $c3 = ord($string[++$i]);
+ if(($c1 & 16) === 0){
+ $json .= sprintf("\\u%04x", (($c1 - 224) <<12) + (($c2 - 128) << 6) + ($c3 - 128));
+ continue;
+ }
+
+ # Quadruple
+ $c4 = ord($string[++$i]);
+ if(($c1 & 8) === 0){
+ $u = (($c1 & 15) << 2) + (($c2>>4) & 3) - 1;
+
+ $w1 = (54<<10) + ($u<<6) + (($c2 & 15) << 2) + (($c3>>4) & 3);
+ $w2 = (55<<10) + (($c3 & 15)<<6) + ($c4-128);
+ $json .= sprintf("\\u%04x\\u%04x", $w1, $w2);
+ }
+ }
+ } else {
+ # int, floats, bools, null
+ $json = strtolower(var_export($data, true));
}
+ return $json;
} else {
return json_encode($data);
}
--
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