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html_entity_decode

(PHP 4 >= 4.3.0, PHP 5)

html_entity_decodeConvert all HTML entities to their applicable characters

Description

string html_entity_decode ( string $string [, int $flags = ENT_COMPAT | ENT_HTML401 [, string $encoding = 'UTF-8' ]] )

html_entity_decode() is the opposite of htmlentities() in that it converts all HTML entities in the string to their applicable characters.

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Parameters

string

The input string.

flags

A bitmask of one or more of the following flags, which specify how to handle quotes and which document type to use. The default is ENT_COMPAT | ENT_HTML401.

Available flags constants
Constant Name Description
ENT_COMPAT Will convert double-quotes and leave single-quotes alone.
ENT_QUOTES Will convert both double and single quotes.
ENT_NOQUOTES Will leave both double and single quotes unconverted.
ENT_HTML401 Handle code as HTML 4.01.
ENT_XML1 Handle code as XML 1.
ENT_XHTML Handle code as XHTML.
ENT_HTML5 Handle code as HTML 5.

encoding

Encoding to use. If omitted, the default value for this argument is ISO-8859-1 in versions of PHP prior to 5.4.0, and UTF-8 from PHP 5.4.0 onwards.

The following character sets are supported:

Supported charsets
Charset Aliases Description
ISO-8859-1 ISO8859-1 Western European, Latin-1.
ISO-8859-5 ISO8859-5 Little used cyrillic charset (Latin/Cyrillic).
ISO-8859-15 ISO8859-15 Western European, Latin-9. Adds the Euro sign, French and Finnish letters missing in Latin-1 (ISO-8859-1).
UTF-8   ASCII compatible multi-byte 8-bit Unicode.
cp866 ibm866, 866 DOS-specific Cyrillic charset.
cp1251 Windows-1251, win-1251, 1251 Windows-specific Cyrillic charset.
cp1252 Windows-1252, 1252 Windows specific charset for Western European.
KOI8-R koi8-ru, koi8r Russian.
BIG5 950 Traditional Chinese, mainly used in Taiwan.
GB2312 936 Simplified Chinese, national standard character set.
BIG5-HKSCS   Big5 with Hong Kong extensions, Traditional Chinese.
Shift_JIS SJIS, SJIS-win, cp932, 932 Japanese
EUC-JP EUCJP, eucJP-win Japanese
MacRoman   Charset that was used by Mac OS.
''   An empty string activates detection from script encoding (Zend multibyte), default_charset and current locale (see nl_langinfo() and setlocale()), in this order. Not recommended.

Note: Any other character sets are not recognized. The default encoding will be used instead and a warning will be emitted.

Return Values

Returns the decoded string.

Changelog

Version Description
5.4.0 Default encoding changed from ISO-8859-1 to UTF-8.
5.4.0 The constants ENT_HTML401, ENT_XML1, ENT_XHTML and ENT_HTML5 were added.
5.0.0 Support for multi-byte encodings was added.

Examples

Example #1 Decoding HTML entities

<?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
?>

Notes

Note:

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 trim()) but ASCII code 160 (0xa0) in the default ISO 8859-1 encoding.

See Also

 
 

Execute html_entity_decode ( string $string [, int $flags = ENT_COMPAT | ENT_HTML401 [, string $encoding = 'UTF-8' ]] )



Php Version:


Output:




 

 

 


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