Answers:
试试这个:
$str = preg_replace_callback('/\\\\u([0-9a-fA-F]{4})/', function ($match) {
return mb_convert_encoding(pack('H*', $match[1]), 'UTF-8', 'UCS-2BE');
}, $str);
如果是基于UTF-16的C / C ++ / Java / Json风格:
$str = preg_replace_callback('/\\\\u([0-9a-fA-F]{4})/', function ($match) {
return mb_convert_encoding(pack('H*', $match[1]), 'UTF-8', 'UTF-16BE');
}, $str);
\u
后跟四个十六进制数字的序列。
print_r(json_decode('{"t":"\u00ed"}')); // -> stdClass Object ( [t] => í )
json_decode('"' . $text . '"')
json_decode('{"t":"\uD83D\uDE0A"}')
是
$text
可以包含双引号的事实。因此,修订版为:json_decode('"'.str_replace('"', '\\"', $text).'"')
。感谢您的帮助:-)
$str = '\u0063\u0061\u0074'.'\ud83d\ude38';
$str2 = '\u0063\u0061\u0074'.'\ud83d';
// U+1F638
var_dump(
"cat\xF0\x9F\x98\xB8" === escape_sequence_decode($str),
"cat\xEF\xBF\xBD" === escape_sequence_decode($str2)
);
function escape_sequence_decode($str) {
// [U+D800 - U+DBFF][U+DC00 - U+DFFF]|[U+0000 - U+FFFF]
$regex = '/\\\u([dD][89abAB][\da-fA-F]{2})\\\u([dD][c-fC-F][\da-fA-F]{2})
|\\\u([\da-fA-F]{4})/sx';
return preg_replace_callback($regex, function($matches) {
if (isset($matches[3])) {
$cp = hexdec($matches[3]);
} else {
$lead = hexdec($matches[1]);
$trail = hexdec($matches[2]);
// http://unicode.org/faq/utf_bom.html#utf16-4
$cp = ($lead << 10) + $trail + 0x10000 - (0xD800 << 10) - 0xDC00;
}
// https://tools.ietf.org/html/rfc3629#section-3
// Characters between U+D800 and U+DFFF are not allowed in UTF-8
if ($cp > 0xD7FF && 0xE000 > $cp) {
$cp = 0xFFFD;
}
// https://github.com/php/php-src/blob/php-5.6.4/ext/standard/html.c#L471
// php_utf32_utf8(unsigned char *buf, unsigned k)
if ($cp < 0x80) {
return chr($cp);
} else if ($cp < 0xA0) {
return chr(0xC0 | $cp >> 6).chr(0x80 | $cp & 0x3F);
}
return html_entity_decode('&#'.$cp.';');
}, $str);
}
😍
这是用HTML代替原始UNICODE的大锤方法。我没有看到其他放置此解决方案的地方,但我认为其他人也遇到了这个问题。
在执行其他任何操作之前,将此str_replace函数应用于RAW JSON。
function unicode2html($str){
$i=65535;
while($i>0){
$hex=dechex($i);
$str=str_replace("\u$hex","&#$i;",$str);
$i--;
}
return $str;
}
这将花很长时间,并且您将用HTML替换任何unicode。
当然,如果您知道JSON中返回的unicode类型,则可以减少这种情况。
例如我的代码越来越多的箭头和dingbat unicode。这些介于8448和11263之间。因此我的生产代码如下:
$i=11263;
while($i>08448){
...etc...
您可以在此处按类型查找Unicode块:http : //unicode-table.com/cn/如果您知道要翻译阿拉伯语或泰勒古语或其他语言,则可以替换这些代码,而不是全部替换65,000个代码。
您可以将相同的大锤应用于简单编码:
$str=str_replace("\u$hex",chr($i),$str);
还有一个解决方案:http :
//www.welefen.com/php-unicode-to-utf8.html
function entity2utf8onechar($unicode_c){
$unicode_c_val = intval($unicode_c);
$f=0x80; // 10000000
$str = "";
// U-00000000 - U-0000007F: 0xxxxxxx
if($unicode_c_val <= 0x7F){ $str = chr($unicode_c_val); } //U-00000080 - U-000007FF: 110xxxxx 10xxxxxx
else if($unicode_c_val >= 0x80 && $unicode_c_val <= 0x7FF){ $h=0xC0; // 11000000
$c1 = $unicode_c_val >> 6 | $h;
$c2 = ($unicode_c_val & 0x3F) | $f;
$str = chr($c1).chr($c2);
} else if($unicode_c_val >= 0x800 && $unicode_c_val <= 0xFFFF){ $h=0xE0; // 11100000
$c1 = $unicode_c_val >> 12 | $h;
$c2 = (($unicode_c_val & 0xFC0) >> 6) | $f;
$c3 = ($unicode_c_val & 0x3F) | $f;
$str=chr($c1).chr($c2).chr($c3);
}
//U-00010000 - U-001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
else if($unicode_c_val >= 0x10000 && $unicode_c_val <= 0x1FFFFF){ $h=0xF0; // 11110000
$c1 = $unicode_c_val >> 18 | $h;
$c2 = (($unicode_c_val & 0x3F000) >>12) | $f;
$c3 = (($unicode_c_val & 0xFC0) >>6) | $f;
$c4 = ($unicode_c_val & 0x3F) | $f;
$str = chr($c1).chr($c2).chr($c3).chr($c4);
}
//U-00200000 - U-03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
else if($unicode_c_val >= 0x200000 && $unicode_c_val <= 0x3FFFFFF){ $h=0xF8; // 11111000
$c1 = $unicode_c_val >> 24 | $h;
$c2 = (($unicode_c_val & 0xFC0000)>>18) | $f;
$c3 = (($unicode_c_val & 0x3F000) >>12) | $f;
$c4 = (($unicode_c_val & 0xFC0) >>6) | $f;
$c5 = ($unicode_c_val & 0x3F) | $f;
$str = chr($c1).chr($c2).chr($c3).chr($c4).chr($c5);
}
//U-04000000 - U-7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
else if($unicode_c_val >= 0x4000000 && $unicode_c_val <= 0x7FFFFFFF){ $h=0xFC; // 11111100
$c1 = $unicode_c_val >> 30 | $h;
$c2 = (($unicode_c_val & 0x3F000000)>>24) | $f;
$c3 = (($unicode_c_val & 0xFC0000)>>18) | $f;
$c4 = (($unicode_c_val & 0x3F000) >>12) | $f;
$c5 = (($unicode_c_val & 0xFC0) >>6) | $f;
$c6 = ($unicode_c_val & 0x3F) | $f;
$str = chr($c1).chr($c2).chr($c3).chr($c4).chr($c5).chr($c6);
}
return $str;
}
function entities2utf8($unicode_c){
$unicode_c = preg_replace("/\&\#([\da-f]{5})\;/es", "entity2utf8onechar('\\1')", $unicode_c);
return $unicode_c;
}
修复json值,将u {xxx}之前的\添加到所有+“”
$item = preg_replace_callback('/"(.+?)":"(u.+?)",/', function ($matches) {
$matches[2] = preg_replace('/(u)/', '\u', $matches[2]);
$matches[2] = preg_replace('/(")/', '"', $matches[2]);
$matches[2] = json_decode('"' . $matches[2] . '"');
return '"' . $matches[1] . '":"' . $matches[2] . '",';
}, $item);