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>html_entity_decode</H1
><DIV
CLASS="refnamediv"
><A
NAME="AEN74627"
></A
><P
> (PHP 4 >= 4.3.0)</P
>html_entity_decode --
Convert all HTML entities to their applicable characters
</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN74630"
></A
><H2
>Description</H2
>string <B
CLASS="methodname"
>html_entity_decode</B
> ( string string [, int quote_style [, string charset]])<BR
></BR
><P
> <B
CLASS="function"
>html_entity_decode()</B
> is the opposite of
<A
HREF="function.htmlentities.html"
><B
CLASS="function"
>htmlentities()</B
></A
> in that it converts all HTML entities
to their applicable characters from <TT
CLASS="parameter"
><I
>string</I
></TT
>.
</P
><P
> The optional second <TT
CLASS="parameter"
><I
>quote_style</I
></TT
> parameter lets
you define what will be done with 'single' and "double" quotes. It takes
on one of three constants with the default being
<TT
CLASS="constant"
><B
>ENT_COMPAT</B
></TT
>:
<DIV
CLASS="table"
><A
NAME="AEN74651"
></A
><P
><B
>Tabla 1. Available <TT
CLASS="parameter"
><I
>quote_style</I
></TT
> constants</B
></P
><TABLE
BORDER="1"
CLASS="CALSTABLE"
><THEAD
><TR
><TH
ALIGN="LEFT"
VALIGN="MIDDLE"
>Constant Name</TH
><TH
ALIGN="LEFT"
VALIGN="MIDDLE"
>Description</TH
></TR
></THEAD
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
><TT
CLASS="constant"
><B
>ENT_COMPAT</B
></TT
></TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Will convert double-quotes and leave single-quotes alone.</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
><TT
CLASS="constant"
><B
>ENT_QUOTES</B
></TT
></TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Will convert both double and single quotes.</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
><TT
CLASS="constant"
><B
>ENT_NOQUOTES</B
></TT
></TD
><TD
ALIGN="LEFT"
VALIGN="MIDDLE"
>Will leave both double and single quotes unconverted.</TD
></TR
></TBODY
></TABLE
></DIV
>
</P
><P
> The ISO-8859-1 character set is used as default for the optional third
<TT
CLASS="parameter"
><I
>charset</I
></TT
>. This defines the character set used in
conversion.
</P
><P
> <TABLE
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><TR
><TD
><DIV
CLASS="example"
><A
NAME="AEN74675"
></A
><P
><B
>Ejemplo 1. Decoding html entities</B
></P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
CELLPADDING="5"
><TR
><TD
><PRE
CLASS="php"
><?php
$orig = "I'll \"walk\" the <b>dog</b> now";
$a = htmlentities($orig);
$b = html_entity_decode($a);
echo $a; // I'll &quot;walk&quot; the &lt;b&gt;dog&lt;/b&gt; now
echo $b; // I'll "walk" the <b>dog</b> now
// For users prior to PHP 4.3.0 you may do this:
function unhtmlentities ($string)
{
$trans_tbl = get_html_translation_table (HTML_ENTITIES);
$trans_tbl = array_flip ($trans_tbl);
return strtr ($string, $trans_tbl);
}
$c = unhtmlentities($a);
echo $c; // I'll "walk" the <b>dog</b> now
?></PRE
></TD
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></DIV
></TD
></TR
></TABLE
>
</P
><P
> <DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>Nota: </B
>
You might wonder why trim(html_entity_decode('&nbsp;')); doesn't
reduce the string to an empty string, that's because the '&nbsp;'
entity is not ASCII code 32 (which is stripped by
<A
HREF="function.trim.html"
><B
CLASS="function"
>trim()</B
></A
>) but ASCII code 160 (0xa0) in the default ISO
8859-1 characterset.
</P
></BLOCKQUOTE
></DIV
>
</P
><P
> See also <A
HREF="function.htmlentities.html"
><B
CLASS="function"
>htmlentities()</B
></A
>,
<A
HREF="function.htmlspecialchars.html"
><B
CLASS="function"
>htmlspecialchars()</B
></A
>,
<A
HREF="function.get-html-translation-table.html"
><B
CLASS="function"
>get_html_translation_table()</B
></A
>,
<A
HREF="function.htmlspecialchars.html"
><B
CLASS="function"
>htmlspecialchars()</B
></A
> and <A
HREF="function.urldecode.html"
><B
CLASS="function"
>urldecode()</B
></A
>.
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