Summary of json_encode Chinese transcoding in PHP5.4

When json_encode is done before php5.4, Chinese will be encoded by unicode, and Chinese will be encoded and become unreadable, similar to the format of "\u***", and the amount of data transmitted will be increased to a certain extent.
Such as:

 
<?php 
$str = ' Chinese '; 
echo json_encode($str); 
//"\u4e2d\u6587" 
php5.4 start  
echo json_encode($str, JSON_UNESCAPED_UNICODE); 
//" Chinese " 

php5.4 let json know more Chinese!
5.4 unicode transcoding is not carried out before, and there are three ways to deal with it:
But the first two ways are actually going to cause problems, in some special cases. The following cases:

 
function myjson($code) { 
$code = json_encode(urlencodeAry($code)); 
return urldecode($code); 
} 
function urlencodeAry($data) { 
if(is_array($data)) { 
foreach($data as $key=>$val) { 
$data[$key] = urlencodeAry($val); 
} 
return $data; 
} else { 
return urlencode($data); 
} 
} 
$test = array ( 
0 => '" Dalian zhoushuizi airport " Renmin road, ', 
1 => ' Operation time: 5 : 10 ~ 21 : 00  Price: 16 yuan   Departure interval 20 minutes 1 Ben, we leave whenever we are full ', 
); 
/* 
 By routine json_encode|json_decode To make up the decoding  
["\"\u5927\u8fde\u5468\u6c34\u5b50\u673a\u573a\"\u2192\u4eba\u6c11\u8def","\u8fd0\u8425\u65f6 
\u95f4\uff1a5\uff1a10\uff5e21\uff1a00 \u7968\u4ef7\uff1a16\u5143 \u53d1\u8f66\u95f4\u969420 
\u5206\u949f\u4e00\u73ed\uff0c\u5ba2\u6ee1\u968f\u65f6\u53d1\u8f66"] 
array ( 
0 => '" Dalian zhoushuizi airport " Renmin road, ', 
1 => ' Operation time: 5 : 10 ~ 21 : 00  Price: 16 yuan   Departure interval 20 minutes 1 Ben, we leave whenever we are full ', 
) 
*/ 
$test1 = json_encode($test); 
$test2 = json_decode($test1, TRUE); 
echo $test1; 
echo PHP_EOL; 
var_export($test2); 
echo PHP_EOL; 
/* 
 through myjson|json_decode To encode and decode, but there will be an error json_last_error return (JSON_ERROR_SYNTAX === 4) .  
 because "" Dalian zhoushuizi airport " Renmin road, " 
["" Dalian zhoushuizi airport " Renmin road, "," Operation time: 5 : 10 ~ 21 : 00  Price: 16 yuan   Departure interval 20 minutes 1 Ben, we leave whenever we are full "] 
NULL 
*/ 
$test1_1 = myjson($test); 
$test2_1 = json_decode($test1_1, TRUE); 
echo $test1_1; 
echo PHP_EOL; 
var_export($test2_1); 
echo PHP_EOL; 
/* 
 through json_enco+pack|json_decode To encode and decode, to ensure that it does not encode Chinese, but will be short of operating time data and ticket prices  
["\" Dalian zhoushuizi airport \" Renmin road, "," Operation time: : ~ :   RMB:   Minutes apart 1 Ben, we leave whenever we are full "] 
array ( 
0 => '" Dalian zhoushuizi airport " Renmin road, ', 
1 => ' Operation time: : ~ :   RMB:   Minutes apart 1 Ben, we leave whenever we are full ', 
) 
*/ 
function replaceUni($str) { 
return preg_replace("#\\\u([0-9a-f]+)#ie", "iconv('UCS-2', 'UTF-8', pack('H4', '\\1'))", $str); 
} 
$test1_2 = replaceUni(json_encode($test)); 
$test2_2 = json_decode($test1_2, TRUE); 
echo $test1_2; 
echo PHP_EOL; 
var_export($test2_2); 
echo PHP_EOL; 

In the last sentence, it is recommended to upgrade to PHP 5.4, so that PHP can understand more Chinese!