PHP 中的 htmlentities 但保留 html 标签
我想将字符串中的所有文本转换为 html 实体，但保留 HTML 标签，例如:
<p><font style="color:#FF0000">Camión español</font></p>应该翻译成这样:
<p><font style="color:#FF0000">Camión español</font></p>有什么想法吗?
解决方案您可以获取实体noreferrer">htmlentities，带有函数 get_html_translation_table ;考虑这个代码:
$list = get_html_translation_table(HTML_ENTITIES);var_dump($list);(您可能需要检查手册中该函数的第二个参数——也许您需要将其设置为与默认值不同的值)
它会给你这样的东西:
数组' ' =>字符串 ' '(长度=6)'¡' =>字符串 '&ieexcl;'(长度=7)'¢' =>字符串 '¢'(长度=6)'£' =>字符串'&磅;'(长度=7)'¤' =>字符串 '¤'(长度=8)............'ÿ' =>字符串 'ÿ'(长度=6)'"' => 字符串 '"'(长度=6)'<'=>字符串 '<'(长度=4)'>'=>字符串 '>'(长度=4)'&'=>字符串 '&'(长度=5)现在，删除您不想要的对应关系:
unset($list['"']);取消设置($list['<']);未设置($list['>'])；取消设置($list['&']);您的列表现在包含 htmlentites 使用的所有对应字符 => 实体，除了您不想编码的少数字符.
现在，您只需要提取键和值的列表:
$search = array_keys($list);$values = array_values($list);最后，您可以使用 str_replace 进行替换:
$str_in = '<p><font style="color:#FF0000">Camión español</font></p>';$str_out = str_replace($search, $values, $str_in);var_dump($str_out);你得到:
string '<p><font style="color:#FF0000">Camión español</font></p>'(长度=84)这看起来像你想要的 ;-)
嗯，除了编码问题(该死的 UTF-8，我想 - 我正在尝试为此找到解决方案，并将再次编辑)
几分钟后的第二次在调用 str_replace 之前，您似乎必须在 $search 列表中使用 utf8_encode :-(
这意味着使用这样的东西:
$search = array_map('utf8_encode', $search);在调用 array_keys 和调用 str_replace 之间.
而且，这一次，你真的应该得到你想要的:
string '<p><font style="color:#FF0000">Camión español</font></p>'(长度=70)
这是代码的完整部分:
$list = get_html_translation_table(HTML_ENTITIES);未设置($list['"']);取消设置($list['<']);未设置($list['>'])；取消设置($list['&']);$search = array_keys($list);$values = array_values($list);$search = array_map('utf8_encode', $search);$str_in = '<p><font style="color:#FF0000">Camión español</font></p>';$str_out = str_replace($search, $values, $str_in);var_dump($str_in, $str_out);以及完整的输出:
string '<p><font style="color:#FF0000">Camión español</font></p>'(长度=58)字符串 '<p><font style="color:#FF0000">Camión español</font></p>'(长度=70)这次应该可以了^^
它并不适合在一行中，可能不是最优化的解决方案；但它应该可以正常工作，并且具有允许您添加/删除任何对应字符 => 您需要或不需要的实体的优点.
玩得开心！
I want to convert all texts in a string into html entities but preserving the HTML tags, for example this:
<p><font style="color:#FF0000">Camión español</font></p>
should be translated into this:
<p><font style="color:#FF0000">Camión español</font></p>
any ideas?
解决方案You can get the list of correspondances character => entity used by htmlentities, with the function get_html_translation_table ; consider this code :
$list = get_html_translation_table(HTML_ENTITIES);
var_dump($list);
(You might want to check the second parameter to that function in the manual -- maybe you'll need to set it to a value different than the default one)
It will get you something like this :
array
' ' => string ' ' (length=6)
'¡' => string '¡' (length=7)
'¢' => string '¢' (length=6)
'£' => string '£' (length=7)
'¤' => string '¤' (length=8)
....
....
....
'ÿ' => string 'ÿ' (length=6)
'"' => string '"' (length=6)
'<' => string '<' (length=4)
'>' => string '>' (length=4)
'&' => string '&' (length=5)
Now, remove the correspondances you don't want :
unset($list['"']);
unset($list['<']);
unset($list['>']);
unset($list['&']);
Your list, now, has all the correspondances character => entity used by htmlentites, except the few characters you don't want to encode.
And now, you just have to extract the list of keys and values :
$search = array_keys($list);
$values = array_values($list);
And, finally, you can use str_replace to do the replacement :
$str_in = '<p><font style="color:#FF0000">Camión español</font></p>';
$str_out = str_replace($search, $values, $str_in);
var_dump($str_out);
And you get :
string '<p><font style="color:#FF0000">Camión español</font></p>' (length=84)
Which looks like what you wanted ;-)
Edit : well, except for the encoding problem (damn UTF-8, I suppose -- I'm trying to find a solution for that, and will edit again)
Second edit couple of minutes after : it seem you'll have to use utf8_encode on the $search list, before calling str_replace :-(
Which means using something like this :
$search = array_map('utf8_encode', $search);
Between the call to array_keys and the call to str_replace.
And, this time, you should really get what you wanted :
string '<p><font style="color:#FF0000">Camión español</font></p>' (length=70)
And here is the full portion of code :
$list = get_html_translation_table(HTML_ENTITIES);
unset($list['"']);
unset($list['<']);
unset($list['>']);
unset($list['&']);
$search = array_keys($list);
$values = array_values($list);
$search = array_map('utf8_encode', $search);
$str_in = '<p><font style="color:#FF0000">Camión español</font></p>';
$str_out = str_replace($search, $values, $str_in);
var_dump($str_in, $str_out);
And the full output :
string '<p><font style="color:#FF0000">Camión español</font></p>' (length=58)
string '<p><font style="color:#FF0000">Camión español</font></p>' (length=70)
This time, it should be ok ^^
It doesn't really fit in one line, is might not be the most optimized solution ; but it should work fine, and has the advantage of allowing you to add/remove any correspondance character => entity you need or not.
Have fun !
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