Array To Json (Any Charset Auto-Convert To UTF-8)

array-to-json.php

<?php
echo encode_json(array('啊'=>'白'));
function encode_json($str) {  
    return urldecode(json_encode(url_encode($str)));      
}  
  
/** 
 *  
 */  
function url_encode($str) {  
    if(is_array($str)) {  
        foreach($str as $key=>$value) {  
        	unset($str[$key]);
        	$str[urlencode($key)] = url_encode($value);  
        }  
    } else {  
        $str = urlencode($str);  
    }  
    return $str;  
} 
?>