Summary of changes in json_encode Chinese transcoding in PHP5.4_PHP tutorial

When doing json_encode before php5.4, Chinese will be encoded by unicode, and Chinese will be encoded and become unreadable, similar to the "u***" format, which will also increase the amount of transmitted data to a certain extent.
For example:

Copy code The code is as follows:

$str = 'Chinese' ;
echo json_encode($str);
//"u4e2du6587"
Starting with php5.4
echo json_encode($str, JSON_UNESCAPED_UNICODE);
//"Chinese"

php5.4 makes json understand Chinese better!
Unicode transcoding was not performed before 5.4. There are three methods to deal with it:
But in fact, the first two methods will cause problems in some special cases. For example:

Copy code The code is as follows:

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 => 'Operating hours: 5: 10～21:00 Fare: 16 yuan. Departs every 20 minutes. Departs at any time when full.
);
/*
Use the regular json_encode|json_decode to encode and decode
[ ""u5927u8fdeu5468u6c34u5b50u673au573a"u2192u4ebau6c11u8def","u8fd0u8425u65f6
u95f4uff1a5uff1a10uff5e21uff1a00 u7968u4ef7uff1a16u5143 u53d 1u8f66u95f4u969420
u5206u949fu4e00u73eduff0cu5ba2u6ee1u968fu65f6u53d1u8f66"]
array (
0 => '"Dalian Zhoushuizi Airport"→Renmin Road',
1 => ; 'Operating hours: 5:10～21:00 Fare: 16 yuan. Departs every 20 minutes. Departs at any time when full.',
)
*/
$test1 = json_encode($test) ;
$test2 = json_decode($test1, TRUE);
echo $test1;
echo PHP_EOL;
var_export($test2);
echo PHP_EOL;
/*
Encode and decode through myjson|json_decode, but an error json_last_error will be returned (JSON_ERROR_SYNTAX === 4),
Because ""Dalian Zhoushuizi Airport" → Renmin Road"
[""Dalian Zhoushuizi Airport" → Renmin Road ","Operating hours: 5:10～21:00 Fare: 16 yuan Departure every 20 minutes, departure at any time when 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;
/*
Use json_enco+pack|json_decode to encode and decode, ensuring that Chinese will not be encoded, but operating time data and fares will be missing
[""Dalian Zhoushuizi Airport"→Renmin Road","Operating hours::~: Fare: Yuan. Departs every minute. Departs at any time when full."]
array (
0 => '"Dalian Zhoushuizi Airport"→Renmin Road',
1 => 'Operating hours: :~: Fare: Yuan. Departs every minute and leaves at any time when 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;

Finally, it is recommended to upgrade to PHP5.4 to make PHP understand Chinese better!

http://www.bkjia.com/PHPjc/326510.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/326510.htmlTechArticleWhen doing json_encode before php5.4, Chinese will be unicode encoded, and Chinese will be encoded and become unreadable , similar to the "u***" format, will also increase the transmitted data to a certain extent...