-
-
/**
- * json_encode的替代函数
- * Edit bbs.it-home.org
- */
- function jsonEncode($var) {
- if (function_exists('json_encode')) {
- return json_encode($var);
- } else {
- switch (gettype($var)) {
- case 'boolean':
- return $var ? 'true' : 'false'; // Lowercase necessary!
- case 'integer':
- case 'double':
- return $var;
- case 'resource':
- case 'string':
- return '"'. str_replace(array("\r", "\n", "", "&"),
- array('\r', '\n', '\x3c', '\x3e', '\x26'),
- addslashes($var)) .'"';
- case 'array':
- // Arrays in JSON can't be associative. If the array is empty or if it
- // has sequential whole number keys starting with 0, it's not associative
- // so we can go ahead and convert it as an array.
- if (emptyempty ($var) || array_keys($var) === range(0, sizeof($var) - 1)) {
- $output = array();
- foreach ($var as $v) {
- $output[] = jsonEncode($v);
- }
- return '[ '. implode(', ', $output) .' ]';
- }
- // Otherwise, fall through to convert the array as an object.
- case 'object':
- $output = array();
- foreach ($var as $k => $v) {
- $output[] = jsonEncode(strval($k)) .': '. jsonEncode($v);
- }
- return '{ '. implode(', ', $output) .' }';
- default:
- return 'null';
- }
- }
- }
-
- echo jsonEncode(array('first'=>'testing','second'=>'tangjili'));
- ?>
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也可以是下面这样的代码。
-
-
function php_json_encode( $data ) {
- if( is_array($data) || is_object($data) ) {
- $islist = is_array($data) && ( emptyempty($data) || array_keys($data) === range(0,count($data)-1) );
- if( $islist ) $json = '[' . implode(',', array_map('php_json_encode', $data) ) . ']';
- else {
- $items = Array();
- foreach( $data as $key => $value ) $items[] = php_json_encode("$key") . ':' . php_json_encode($value);
- $json = '{' . implode(',', $items) . '}';
- }
- } elseif( is_string($data) ) {
- $string = '"' . addcslashes($data, "\\\"\n\r\t/" . chr(8) . chr(12)) . '"';
-
- $json = '';
- $len = strlen($string);
- for( $i = 0; $i $char = $string[$i];
-
- $c1 = ord($char);
- if( $c1 31) ? $char : sprintf("\\u%04x", $c1); continue; }
- $c2 = ord($string[++$i]);
- if ( ($c1 & 32) === 0 ) { $json .= sprintf("\\u%04x", ($c1 - 192) * 64 + $c2 - 128); continue; }
- $c3 = ord($string[++$i]);
- if( ($c1 & 16) === 0 ) { $json .= sprintf("\\u%04x", (($c1 - 224) $c4 = ord($string[++$i]);
- if( ($c1 & 8 ) === 0 ) {
- $u = (($c1 & 15) >4) & 3) - 1;
- $w1 = (54>4) & 3);
- $w2 = (55 $json .= sprintf("\\u%04x\\u%04x", $w1, $w2);
- }
- }
- }
- else $json = strtolower(var_export( $data, true ));
-
- return $json;
- }
- echo php_json_encode(array('first'=>'testing'));
- ?>
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中文的话,可以结合如下的函数来使用。
-
-
function arrayRecursive(&$array, $function, $apply_to_keys_also = false)
- {
- foreach ($array as $key => $value) {
- if (is_array($value)) arrayRecursive($array[$key], $function, $apply_to_keys_also);
- else $array[$key] = $function($value);
-
- if ($apply_to_keys_also && is_string($key)) { $new_key = $function($key); if ($new_key != $key) { $array[$new_key] = $array[$key]; unset($array[$key]); } }
- }
- }
- ?>
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调用示例:
-
-
function JSON($array) {
- arrayRecursive($array, 'urlencode', true);
- $json = jsonEncode($array); // 或者 $json = php_json_encode($array);
- return urldecode($json);
- }
-
- echo JSON(array('first'=>'testing','second'=>'中文'));
- ?>
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