htmlentities
or of course:
<?php
$var = "Blue & yellow make green.";
$var = (htmlspecialchars_decode($var) == $var) ? htmlspecialchars($var) : $var;
echo $var; // outputs Blue & yellow make green.
// you can do it a bunch of times, it still won't screw you!
$var = (htmlspecialchars_decode($var) == $var) ? htmlspecialchars($var) : $var;
$var = (htmlspecialchars_decode($var) == $var) ? htmlspecialchars($var) : $var;
echo $var; // still outputs Blue & yellow make green.
?>
Put it in a function. Add it to the method of some abstract data class.
htmlspecialchars_decode
(PHP 5 >= 5.1.0)
htmlspecialchars_decode — Özel HTML öğelerini gerisin geriye karakterlere dönüştürür
Açıklama
string htmlspecialchars_decode
( string $dizge
[, int $öncelem_türü = ENT_COMPAT
] )
Bu işlev htmlspecialchars() işlevinin zıddıdır. HTML öğelerini gerisin geriye karakterlere dönüştürür
Dönüştürülen öğeler: &, " (ENT_NOQUOTES belirtilmişse), ' (ENT_QUOTES belirtilmişse), < ve >.
Değiştirgeler
- dizge
-
Kodu çözülecek dizge.
- öncelem_türü
-
Şu sabitlerden biri olabilir:
öncelem_türü sabitleri Sabit İsmi Açıklama ENT_COMPAT Çift tırnaklar dönüştürülür, tek tırnaklara dokunulmaz (öntanımlı) ENT_QUOTES Hem tek hem de çift tırnaklar dönüştürülür ENT_NOQUOTES Ne tek ne de çift tırnaklar dönüştürülür
Dönen Değerler
Kodlaması çözülmüş dizge.
Örnekler
Örnek 1 - htmlspecialchars_decode() örneği
<?php
$str = '<p>Bu -> "</p>';
echo htmlspecialchars_decode($str);
// Burada tırnaklar dönüştürülmüyor
echo htmlspecialchars_decode($str, ENT_NOQUOTES);
?>
Yukarıdaki örneğin çıktısı:
<p>Bu -> "</p> <p>Bu -> "</p>
Ayrıca Bakınız
- htmlspecialchars() - Özel karakterleri HTML öğeleri haline getirir
- html_entity_decode() - Dönüştürülebilecek tüm HTML öğelerini karakter haline getirir
- get_html_translation_table() - htmlspecialchars ve htmlentities tarafından kullanılan dönüşüm tablosunu döndürür
add a note
User Contributed Noteshtmlspecialchars_decode
benharold at mac dot com
27-Jan-2009 12:48
27-Jan-2009 12:48
benharold at mac dot com
26-Jan-2009 09:30
26-Jan-2009 09:30
If you use `htmlspecialchars()` to change things like the ampersand (&) into it's HTML equivalent (&), you might run into a situation where you mistakenly pass the same string to the function twice, resulting in things appearing on your website like, as I call it, the ampersanded amp; "&". Clearly nobody want's "&" on his or her web page where there is supposed to be just an ampersand. Here's a quick and easy trick to make sure this doesn't happen:
<?php
$var = "This is a string that could be passed to htmlspecialchars multiple times.";
if (htmlspecialchars_decode($var) == $var) {
$var = htmlspecialchars($var);
}
echo $var;
?>
Now, if your dealing with text that is a mixed bag (has HTML entities and non-HTML entities) you're on your own.
thomas at xci[ignore_this]teit dot commm
28-Mar-2008 11:03
28-Mar-2008 11:03
The example for "htmlspecialchars_decode()" below sadly does not work for all PHP4 versions.
Quote from the PHP manual:
"get_html_translation_table() will return the translation table that is used internally for htmlspecialchars() and htmlentities()."
But it does NOT! At least not for PHP version 4.4.2.
This was already reported in a bug report (http://bugs.php.net/bug.php?id=25927), but it was marked as BOGUS.
Proof:
Code:
--------------------
<?php
var_dump(get_html_translation_table(HTML_SPECIALCHARS,ENT_QUOTES));
var_dump(htmlspecialchars('\'',ENT_QUOTES));
?>
--------------------
Output:
--------------------
array
'"' => '"'
''' => '''
'<' => '<'
'>' => '>'
'&' => '&'
'''
--------------------
This comment now is not to report this bug again (though I really believe it is one), but to complete the example and warn people of this pitfall.
To make sure your htmlspecialchars_decode fake for PHP4 works, you should do something like this:
<?php
function htmlspecialchars_decode($string,$style=ENT_COMPAT)
{
$translation = array_flip(get_html_translation_table(HTML_SPECIALCHARS,$style));
if($style === ENT_QUOTES){ $translation['''] = '\''; }
return strtr($string,$translation);
}
?>
Br, Thomas
Wout
28-Jul-2007 04:06
28-Jul-2007 04:06
The following replacement for PHP 4 is a little more complete, as the quote_style is taken into account as well:
if (!function_exists("htmlspecialchars_decode")) {
function htmlspecialchars_decode($string, $quote_style = ENT_COMPAT) {
return strtr($string, array_flip(get_html_translation_table(HTML_SPECIALCHARS, $quote_style)));
}
}
17-Aug-2006 12:49
This should be the best way to do it.
(Reposted because the other one seems a bit slower and because those who used the code under called it htmlspecialchars_decode_php4)
<?php
if ( !function_exists('htmlspecialchars_decode') )
{
function htmlspecialchars_decode($text)
{
return strtr($text, array_flip(get_html_translation_table(HTML_SPECIALCHARS)));
}
}
?>
TheSin
09-May-2006 09:51
09-May-2006 09:51
Here is how you can get this function in php < 5.1, just make sure this function is before you try and call the function.
if (!function_exists('htmlspecialchars_decode')) {
function htmlspecialchars_decode($str, $options="") {
$trans = get_html_translation_table(HTML_SPECIALCHARS, $options);
$decode = ARRAY();
foreach ($trans AS $char=>$entity) {
$decode[$entity] = $char;
}
$str = strtr($str, $decode);
return $str;
}
}
se at designlinks dot net
14-Dec-2005 04:43
14-Dec-2005 04:43
The code supplied by or-k at or-k dot com (14-Sep-2005 09:15) is better served using html_entity_decode() for PHP>=4.3.0.
geoffers@gmail (14-Jul-2005 01:38) offers the best htmlspecialchars_decode() for php4 users.
or-k at or-k dot com
14-Sep-2005 09:15
14-Sep-2005 09:15
that works also with ä and " and so on.
get_html_translation_table(HTML_ENTITIES) => offers more characters than HTML_SPECIALCHARS
function htmlspecialchars_decode_PHP4($uSTR)
{
return strtr($uSTR, array_flip(get_html_translation_table(HTML_ENTITIES, ENT_QUOTES)));
}
geoffers@gmail
14-Jul-2005 01:38
14-Jul-2005 01:38
[Update of previous note, having noticed I forgot to put in quote style]
PHP4 Compatible function:
<?php
function htmlspecialchars_decode_php4 ($str, $quote_style = ENT_COMPAT) {
return strtr($str, array_flip(get_html_translation_table(HTML_SPECIALCHARS, $quote_style)));
}
?>
geoffers at gmail dot com
14-Jul-2005 01:30
14-Jul-2005 01:30
For PHP4 Compatibility:
<?php
function htmlspecialchars_decode_php4 ($str) {
return strtr($str, array_flip(get_html_translation_table(HTML_SPECIALCHARS)));
}
?>