php的json_encode和字符表示 [英] php's json_encode and character representation
本文介绍了php的json_encode和字符表示的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我将尽可能简单地介绍它: 我使用json_encode()对来自不同语言的许多utf-8字符串进行编码，我注意到当字符属于ASCII表时，这些字符保持不变，但其他所有内容均以'\ unnnn'的形式返回，其中'nnnn'是十六进制数字. /p>
查看代码:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="content-type" content="application/xhtml+xml; charset=UTF-8" />
<title>Multibyte string functions</title>
</head>
<body>
<h3>Multibyte string functions</h3>
<p>
<?php
//present json encode errors nicely:
//assign integer values to keys and error names to values
echo '<br /><b>Define JSON errors</b><br />';
$constants = get_defined_constants(true);
$json_errors = array();
foreach ($constants["json"] as $name => $value) {
if (!strncmp($name, "JSON_ERROR_", 11)) {
$json_errors[$value] = $name;
}
}
echo nl2br(print_r($json_errors, true), true);
//Display current detection order
echo "<br /><b>Current detection order 'mb_detect_order()':</b> ", implode(", ", mb_detect_order());
//Display internal encoding
echo "<br /><b>Internal encoding 'mb_internal_encoding()':</b> ", mb_internal_encoding();
//Get current language
echo "<br /><b>Current detection language 'mb_language()' ('neutral' for utf8):</b> ", mb_language();
//our test data
//a nowdoc that can break a <input> field;
$str = <<<'STR'
O'Reilly(\n) "& 'Big\Two @ <span>bo\tld</span>"
STR;
$strings = array(
$str,
"Latin: tell me the answer and I might find the question!",
"Greek: πες μου την ερώτηση και ίσως βρω την απάντηση!",
"Chinese simplified: 告诉我答复，并且我也许发现问题!",
"Arabic: أخبرني الاجابة, انا قد تجد مسالة!",
"Portuguese: mais coisas a pensar sobre diário ou dois!",
"French: plus de choses à penser à journalier ou à deux!",
"Spanish: ¡más cosas a pensar en diario o dos!",
"Italian: più cose da pensare circa giornaliere o due!",
"Danish: flere ting å tenke på hver dag eller to!",
"Chech: Další věcí, přemýšlet o každý den nebo dva!",
"German: mehr über Spaß spät schönen",
"Albanian: më vonë gjatë fun bukur",
"Hungarian: több mint szórakozás késő csodálatos kenyér"
);
//show encoding and then encode
foreach( $strings as $string ){
echo "<br /><br />$string :", mb_detect_encoding($string);
$json = json_encode($string);
echo "<br />Error? ", $json_errors[json_last_error()];
echo '<br />json=', $json;
}
上面的代码将输出:
Define JSON errors
Array
(
[0] => JSON_ERROR_NONE
[1] => JSON_ERROR_DEPTH
[2] => JSON_ERROR_STATE_MISMATCH
[3] => JSON_ERROR_CTRL_CHAR
[4] => JSON_ERROR_SYNTAX
[5] => JSON_ERROR_UTF8
)
Current detection order 'mb_detect_order()': ASCII, UTF-8
Internal encoding 'mb_internal_encoding()': ISO-8859-1
Current detection language 'mb_language()' ('neutral' for utf8): neutral
O'Reilly(\n) "& 'Big\Two @ bo\tld" :ASCII
Error? JSON_ERROR_NONE
json="O'Reilly(\\n) \"& 'Big\\Two @ bo\\tld<\/span>\""
Latin: tell me the answer and I might find the question! :ASCII
Error? JSON_ERROR_NONE
json="Latin: tell me the answer and I might find the question!"
Greek: πες μου την ερώτηση και ίσως βρω την απάντηση! :UTF-8
Error? JSON_ERROR_NONE
json="Greek: \u03c0\u03b5\u03c2 \u03bc\u03bf\u03c5 \u03c4\u03b7\u03bd \u03b5\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03af\u03c3\u03c9\u03c2 \u03b2\u03c1\u03c9 \u03c4\u03b7\u03bd \u03b1\u03c0\u03ac\u03bd\u03c4\u03b7\u03c3\u03b7!"
Chinese simplified: 告诉我答复，并且我也许发现问题! :UTF-8
Error? JSON_ERROR_NONE
json="Chinese simplified: \u544a\u8bc9\u6211\u7b54\u590d\uff0c\u5e76\u4e14\u6211\u4e5f\u8bb8\u53d1\u73b0\u95ee\u9898!"
Arabic: أخبرني الاجابة, انا قد تجد مسالة! :UTF-8
Error? JSON_ERROR_NONE
json="Arabic: \u0623\u062e\u0628\u0631\u0646\u064a \u0627\u0644\u0627\u062c\u0627\u0628\u0629, \u0627\u0646\u0627 \u0642\u062f \u062a\u062c\u062f \u0645\u0633\u0627\u0644\u0629!"
Portuguese: mais coisas a pensar sobre diário ou dois! :UTF-8
Error? JSON_ERROR_NONE
json="Portuguese: mais coisas a pensar sobre di\u00e1rio ou dois!"
French: plus de choses à penser à journalier ou à deux! :UTF-8
Error? JSON_ERROR_NONE
json="French: plus de choses \u00e0 penser \u00e0 journalier ou \u00e0 deux!"
Spanish: ¡más cosas a pensar en diario o dos! :UTF-8
Error? JSON_ERROR_NONE
json="Spanish: \u00a1m\u00e1s cosas a pensar en diario o dos!"
Italian: più cose da pensare circa giornaliere o due! :UTF-8
Error? JSON_ERROR_NONE
json="Italian: pi\u00f9 cose da pensare circa giornaliere o due!"
Danish: flere ting å tenke på hver dag eller to! :UTF-8
Error? JSON_ERROR_NONE
json="Danish: flere ting \u00e5 tenke p\u00e5 hver dag eller to!"
Chech: Další věcí, přemýšlet o každý den nebo dva! :UTF-8
Error? JSON_ERROR_NONE
json="Chech: Dal\u0161\u00ed v\u011bc\u00ed, p\u0159em\u00fd\u0161let o ka\u017ed\u00fd den nebo dva!"
German: mehr über Spaß spät schönen :UTF-8
Error? JSON_ERROR_NONE
json="German: mehr \u00fcber Spa\u00df sp\u00e4t sch\u00f6nen"
Albanian: më vonë gjatë fun bukur :UTF-8
Error? JSON_ERROR_NONE
json="Albanian: m\u00eb von\u00eb gjat\u00eb fun bukur"
Hungarian: több mint szórakozás késő csodálatos kenyér :UTF-8
Error? JSON_ERROR_NONE
json="Hungarian: t\u00f6bb mint sz\u00f3rakoz\u00e1s k\u00e9s\u0151 csod\u00e1latos keny\u00e9r"
您可以在大多数语言(英语除外)中看到utf-8字符的十六进制转换. 是否可以通过不替换我的unicode字符进行编码?安全吗?别人做什么?
您应该考虑来自页面中用户输入并存储到mysql的此类编码.
谢谢.
解决方案
也许您应该尝试 As you can see in most languages-except English-there is a hexadecimal conversion of utf-8 characters.
Is it possible to encode by not replacing my unicode characters? Is it safe? What other people do? You should consider such encodings that are coming from user input in pages and stored to mysql. Thanks. Maybe you should try 这篇关于php的json_encode和字符表示的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！json_encode($string, JSON_UNESCAPED_UNICODE)或 解决方案 json_encode($string, JSON_UNESCAPED_UNICODE) , or any method in http://php.net/manual/fr/function.json-encode.php that may be usefull for your various cases.
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