PHP HTML Decoding Help - Converting: a 'Quote' Is <B>Bold</B>

PHP html decoding help - converting: A 'quote' is bbold/b

Make sure you use the right quote_style:

html_entity_decode('A 'quote' is <b>bold</b>', ENT_QUOTES);

ENT_QUOTES Will convert both double and single quotes. (PHP Manual: html_entity_decode)

Encode HTML entities in JavaScript

You can use regex to replace any character in a given unicode range with its html entity equivalent. The code would look something like this:

var encodedStr = rawStr.replace(/[\u00A0-\u9999<>\&]/g, function(i) {
   return '&#'+i.charCodeAt(0)+';';
});

This code will replace all characters in the given range (unicode 00A0 - 9999, as well as ampersand, greater & less than) with their html entity equivalents, which is simply &#nnn; where nnn is the unicode value we get from charCodeAt.

See it in action here: http://jsfiddle.net/E3EqX/13/ (this example uses jQuery for element selectors used in the example. The base code itself, above, does not use jQuery)

Making these conversions does not solve all the problems -- make sure you're using UTF8 character encoding, make sure your database is storing the strings in UTF8. You still may see instances where the characters do not display correctly, depending on system font configuration and other issues out of your control.

Documentation

• String.charCodeAt - https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/charCodeAt
• HTML Character entities - http://www.chucke.com/entities.html

How do you convert Html to plain text?

If you are talking about tag stripping, it is relatively straight forward if you don't have to worry about things like <script> tags. If all you need to do is display the text without the tags you can accomplish that with a regular expression:

<[^>]*>

If you do have to worry about <script> tags and the like then you'll need something a bit more powerful then regular expressions because you need to track state, omething more like a Context Free Grammar (CFG). Althought you might be able to accomplish it with 'Left To Right' or non-greedy matching.

If you can use regular expressions there are many web pages out there with good info:

• http://weblogs.asp.net/rosherove/archive/2003/05/13/6963.aspx
• http://www.google.com/search?hl=en&q=html+tag+stripping+&btnG=Search

If you need the more complex behaviour of a CFG I would suggest using a third party tool, unfortunately I don't know of a good one to recommend.

PHP htmlentities not working even with parameters

Your code works for me :-?

In the manual page for htmlentities() we can read:

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. (Assuming that the script is not crashing, i.e., code after that part still runs.)

htmlentities in PHP but preserving html tags

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 !

Strip HTML from Text JavaScript

If you're running in a browser, then the easiest way is just to let the browser do it for you...

function stripHtml(html)
{
   let tmp = document.createElement("DIV");
   tmp.innerHTML = html;
   return tmp.textContent || tmp.innerText || "";
}

Note: as folks have noted in the comments, this is best avoided if you don't control the source of the HTML (for example, don't run this on anything that could've come from user input). For those scenarios, you can still let the browser do the work for you - see Saba's answer on using the now widely-available DOMParser.

How to strip ' and "e; in Highchart legend values?

That is html entities, see http://www.w3schools.com/tags/ref_entities.asp.

Instead of removing them you could replace them with their real symbol.

var Str = "Slogans such as McDonalds's";
Str = String(Str).replace(/'/g, "'").replace(/"/g, '"');

If you want to strip them just change the code to

var Str = "Slogans such as McDonalds's";
Str = String(Str).replace(/'/g, '').replace(/"/g, '');

Here is a fiddle as a demo, http://jsfiddle.net/Zx9cn/

How to strip HTML tags from a string in SQL Server?

There is a UDF that will do that described here:

User Defined Function to Strip HTML

CREATE FUNCTION [dbo].[udf_StripHTML] (@HTMLText VARCHAR(MAX))
RETURNS VARCHAR(MAX) AS
BEGIN
    DECLARE @Start INT
    DECLARE @End INT
    DECLARE @Length INT
    SET @Start = CHARINDEX('<',@HTMLText)
    SET @End = CHARINDEX('>',@HTMLText,CHARINDEX('<',@HTMLText))
    SET @Length = (@End - @Start) + 1
    WHILE @Start > 0 AND @End > 0 AND @Length > 0
    BEGIN
        SET @HTMLText = STUFF(@HTMLText,@Start,@Length,'')
        SET @Start = CHARINDEX('<',@HTMLText)
        SET @End = CHARINDEX('>',@HTMLText,CHARINDEX('<',@HTMLText))
        SET @Length = (@End - @Start) + 1
    END
    RETURN LTRIM(RTRIM(@HTMLText))
END
GO

Edit: note this is for SQL Server 2005, but if you change the keyword MAX to something like 4000, it will work in SQL Server 2000 as well.

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