<?php
final class Json {
static public function encode($data) {
if (function_exists('json_encode')) {
return json_encode($data) . "\n\n\n\n\n\n";
} else {
switch (gettype($data)) {
case 'boolean':
return $data ? 'true' : 'false';
case 'integer':
case 'double':
return $data;
case 'resource':
case 'string':
return '"' . str_replace(array("\r", "\n", "/", "\""), array('\r', '\n', '\/', '\\"'), $data) . '"';
case 'array':
if (empty($data) || array_keys($data) === range(0, sizeof($data) - 1)) {
$output = array();
foreach ($data as $value) {
$output[] = Json::encode($value);
}
return '[' . implode(',', $output) . ']';
}
case 'object':
$output = array();
foreach ($data as $key => $value) {
$output[] = Json::encode(strval($key)) . ':' . Json::encode($value);
}
return '{' . implode(',', $output) . '}';
default:
return 'null';
}
}
}
static public function decode($json, $assoc = false) {
if (function_exists('json_decode')) {
return json_decode($json, true);
} else {
$match = '/".*?(?<!\\\\)"/';
$string = preg_replace($match, '', $json);
$string = preg_replace('/[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]/', '', $string);
if ($string != '') {
return null;
}
$s2m = array();
$m2s = array();
preg_match_all($match, $json, $m);
foreach ($m[0] as $s) {
$hash = '"' . md5($s) . '"';
$s2m[$s] = $hash;
$m2s[$hash] = str_replace('$', '\$', $s);
}
$json = strtr($json, $s2m);
$a = ($assoc) ? '' : '(object) ';
$data = array(
':' => '=>',
'[' => 'array(',
'{' => "{$a}array(",
']' => ')',
'}' => ')'
);
$json = strtr($json, $data);
$json = preg_replace('~([\s\(,>])(-?)0~', '$1$2', $json);
$json = strtr($json, $m2s);
$function = @create_function('', "return {$json};");
$return = ($function) ? $function() : null;
unset($s2m);
unset($m2s);
unset($function);
return $return;
}
}
}
?>
