+if (!function_exists('json_encode')) {
+ function json_encode($data) {
+ switch ($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) {
+ $output_indexed[] = json_encode($value);
+ $output_associative[] = json_encode($key) . ':' . json_encode($value);
+ if ($output_index_count !== NULL && $output_index_count++ !== $key) {
+ $output_index_count = NULL;
+ }
+ }
+ if ($output_index_count !== NULL) {
+ return '[' . implode(',', $output_indexed) . ']';
+ } else {
+ return '{' . implode(',', $output_associative) . '}';
+ }
+ default:
+ return ''; // Not supported
+ }
+ }
+}