The example in this article describes the solution to the problem that json in versions below php5.4 does not support unescaped Chinese content. Share it with everyone for your reference. The specific analysis is as follows:
When writing the ERP interface, I encountered the JAVA side receiving this json_encoded content
The code is as follows:
Among them, "creator":"u751fu6d3bu7528u54c1u6d4bu8bd5u5c0fu5c4b" is Chinese, and currently we use UTF8. But when the JAVA side receives this, it automatically converts the escaped Chinese back to Chinese. The signature calculation method is based on this, and the signature will naturally not be correct.
I checked the PHP manual and found that those below 5.4 must escape Chinese, but the PHP version on our server is 5.3, so we used PHP to simulate a JSON method.
The code is as follows:
if (version_compare(PHP_VERSION, '5.4.0') >= 0) {
function json_encode_ex($var) {
return json_encode($var, JSON_UNESCAPED_UNICODE);
}
} else {
function json_encode_ex($var) {
if ($var === null)
return 'null';
if ($var === true)
return 'true';
if ($var === false)
return 'false';
static $reps = array(
array("\", "/", "n", "t", "r", "b", "f", '"', ),
array('\\', '\/', '\n', '\t', '\r', '\b', '\f', '"', ),
);
if (is_scalar($var))
return '"' . str_replace($reps[0], $reps[1], (string) $var) . '"';
if (!is_array($var))
throw new Exception('JSON encoder error!');
$isMap = false;
$i = 0;
foreach (array_keys($var) as $k) {
if (!is_int($k) || $i != $k) {
$isMap = true;
break;
}
}
$s = array();
if ($isMap) {
foreach ($var as $k => $v)
$s[] = '"' . $k . '":' . call_user_func(__FUNCTION__, $v);
return '{' . implode(',', $s) . '}';
} else {
foreach ($var as $v)
$s[] = call_user_func(__FUNCTION__, $v);
return '[' . implode(',', $s) . ']';
}
}
}
When using it, just use it directly as a built-in function. json_encode_ex(array('Diaoyu Island'=>'China')); also supports multi-dimensional arrays.
I hope this article will be helpful to everyone’s PHP programming design.
