PHP htmlentities 即使使用参数也不起作用
[英]PHP htmlentities not working even with parameters
问题描述
Of course this has been asked before and have searched for solutions, all which have not worked thus far.
当然，这之前已经被问过并已经寻找了解决方案，但迄今为止所有这些都没有奏效。 I want to change out the TM symbol and the ampersand to their html equivelents by using htmlentities or htmlspecialchars :我想通过使用htmlentities或htmlspecialchars将 TM 符号和 & 符号更改为它们的 html 等效项：
$TEST = "Kold Locker™ & other stuff";
echo "ORGINIAL: " . $TEST . "<BR/>";
echo "HTML: " . htmlentities($TEST, ENT_COMPAT, 'UTF-8');
This displays:这显示：
ORGINIAL: Kold Locker™ & other stuff
HTML:
I have also tried it with htmlspecialchars and the second parameter changed with the same result.我也用htmlspecialchars尝试过它，第二个参数改变了相同的结果。
What am I missing that others have claimed worked in other solutions?我错过了其他人声称在其他解决方案中有效的东西？
UPDATE : I tried just displaying utf8_encode($TEST) and it displayed HTML: Kold Locker™ & other stuff更新：我尝试只显示utf8_encode($TEST)并显示HTML: Kold Locker™ & other stuff
5 个解决方案
解决方案1
6 2013-06-04 00:49:59
I dont know why , this worked for me ( htmlentities has to be called twice for me )我不知道为什么，这对我有用（必须为我调用 htmlentities 两次）
$html="<html> <head><head>something like this </html>"
$entities_correction= htmlentities( $html, ENT_COMPAT, 'UTF-8');
echo htmlentities( $entities_correction, ENT_COMPAT, 'UTF-8');
output :输出 ：
<html> <head><head>something like this </html>
解决方案2
6 2013-08-31 08:37:18
I thought I had the same problem as Pjack (msg of Jul 14 at 8:54):我以为我和 Pjack 有同样的问题（7 月 14 日 8:54 的 msg）：
$str = "A 'quote' is <b>bold</b>";
echo htmlentities($str);
gives in the Browser (Firefox in my case) the original string $str (without any translation), while在浏览器（在我的情况下为 Firefox）中给出原始字符串 $str （没有任何翻译），而
echo htmlentities(htmlentities($str));
gives:给出：
A 'quote' is <b>bold</b>
(I use PHP/5.4.16 obtained from windows-7 XAMPP). （我使用从 windows-7 XAMPP 获得的 PHP/5.4.16）。
However, after some more thought it occurred to me that the Browser shows the strings <然而，经过一些思考，我发现浏览器显示字符串 < and >和 > as > and <.作为 > 和 <。 (See the source code in the browser). （查看浏览器中的源代码）。 Second call of htmlentities translates & into & htmlentities 的第二次调用将 & 转换为& and only then the Browser shows what you expected in the first place.只有这样，浏览器才会首先显示您的预期。
解决方案3
3 已采纳 2013-04-04 16:01:16
Your code works for me :-?你的代码对我有用:-?
In the manual page for htmlentities() we can read:在htmlentities()的手册页中，我们可以阅读：
Return Values
Returns the encoded string.
If the input string contains an invalid code unit sequence within the given encoding an empty string will be returned, unless either the ENT_IGNORE or ENT_SUBSTITUTE flags are set.
My guess is that the input data is not properly encoded as UTF-8 and the function is returning an empty string.我的猜测是输入数据没有正确编码为 UTF-8，函数返回一个空字符串。 (Assuming that the script is not crashing, ie, code after that part still runs.) （假设脚本没有崩溃，即该部分之后的代码仍在运行。）
解决方案4
0 2017-07-09 10:02:56
I had almost the same problem (in which somehow it showed the same text every time) and with a combination of different echo´si got it.我遇到了几乎相同的问题（不知何故，它每次都显示相同的文本）并且结合了不同的 echo´si 得到了它。 It seems that webbrowsers like firefox show the same text every time.似乎像 Firefox 这样的网络浏览器每次都显示相同的文本。 That´s because when you echo the htmlentities-text, its being converted back into normal text while echoing.那是因为当您echo显 htmlentities-text 时，它会在回显时转换回普通文本。 When I echo a script with the variable/text to be console.log ged, it actually echo´s the htmlentities text (almost) correctly.当我将带有变量/文本的脚本回显为console.log ，它实际上（几乎）正确地回显了 htmlentities 文本。 Instead of replacing every special char with html-codings, it replaces ´em with some other coding i already saw before (I can´t remember the name).它没有用 html 编码替换每个特殊字符，而是用我以前见过的其他一些编码替换 'em（我不记得名字了）。 Htmlentities-ing it again, I get the same text echo´d again (remember it converts everything), but echoing it in console.log-version gives to me the expected result. Htmlentities-ing 再次，我再次得到相同的文本 echo´d（记住它会转换所有内容），但是在 console.log-version 中回显它给了我预期的结果。 Now, again, as a result:现在，再次，结果：
1. Execute htmlentities two times ! 1. 执行htmlentities两次！
2. Don´t (at least with firefox) echo the htmlentities as normal into the webpage . 2.不要（至少在 Firefox 中）像往常一样将 htmlentities回显到网页中。 If you´d like to check if the value is actually correct, echo a script that logs it into console.如果您想检查该值是否确实正确，请回显将其记录到控制台的脚本。
I hope this could help other guys with the same problem,我希望这可以帮助其他有同样问题的人，
VicStudio维克工作室
EDIT : 3. If you are using a $_POST formular, don´t forget to add accept-charset="UTF-8" (or some other charset) to the <form> tag.编辑： 3. 如果您使用的是$_POST公式，请不要忘记将accept-charset="UTF-8" （或其他一些字符集）添加到<form>标记中。
EVEN MORE EDIT : Only do 2 times htmlentities if you wish to echo your result normal into the page.甚至更多编辑：如果您希望将结果正常回显到页面中， htmlentities执行 2 次htmlentities 。 If you wish to directly send in fe a database, only do it once!如果您想直接发送 fe 数据库，只需做一次！ -> what i said before is partually wrong. -> 我之前说的部分是错误的。 :( :(
解决方案5
0 2020-09-02 18:48:36
这是一篇旧帖子，但对于仍在寻找解决方案的任何人，以下是我成功使用的方法：
echo html_entity_decode($htmlString);
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