html_entity_decode() 函数

html_entity_decode() 函数


 
定义和用法

The html_entity_decode() function converts HTML entities to characters.
html_entity_decode()函数的作用是:转换HTML字符编码为字符。

The html_entity_decode() function is the opposite of htmlentities()
html_entity_decode()函数的作用是和htmlentities()相反的。

Syntax
语法

html_entity_decode(string,quotestyle,character-set)

 

Parameter参数Description描述
string Required. Specifies the string to decode
必要参数。指定需要解码的字符串对象
quotestyle Optional. Specifies how to decode single and double quotes.
可选参数。定义如何对单引号和双引号进行编码。默认值是ENT_COMPAT。

The available quote styles are:
可能值:

  • ENT_COMPAT - Default. Decodes only double quotes
    ENT_COMPAT –对双引号进行编码,不对单引号进行编码
  • ENT_QUOTES - Decodes double and single quotes
    ENT_QUOTES –对单引号和双引号进行编码
  • ENT_NOQUOTES - Does not decode any quotes
    ENT_NOQUOTES –不对单引号或双引号进行编码
character-set Optional. A string that specifies which character-set to use.
可选参数。指定使用什么样的字符串设置

Allowed values are:
可用值如下:

  • ISO-8859-1 - Default. Western European
    ISO-8859-1 –默认值。西欧文
  • ISO-8859-15 - Western European (adds the Euro sign + French and Finnish letters missing in ISO-8859-1)
    ISO-8859-15 –西欧文(加入了ISO-8859-1中没有的符号+法语和芬兰字母)
  • UTF-8 - ASCII compatible multi-byte 8-bit Unicode
    UTF-8 – 与ASCII兼容的多字节8位统一的字符编码标准
  • cp866 - DOS-specific Cyrillic charset
    cp866 – DOS – 详细的西尔里[Cyrillic]字符设置
  • cp1251 - Windows-specific Cyrillic charset
    cp1251 – Windows-详细的西尔里[Cyrillic]字符设置
  • cp1252 - Windows specific charset for Western European
    cp1252 – Windws – 详细的西欧字体的字体属性
  • KOI8-R - Russian
    KOI8-R – 俄罗斯文
  • BIG5 - Traditional Chinese, mainly used in Taiwan
    BIG5 – 繁体中文,主要在台湾使用
  • GB2312 - Simplified Chinese, national standard character set
    GB2312 –简体中文,主要在中国大陆使用
  • BIG5-HKSCS - Big5 with Hong Kong extensions
    BIG5-HKSCS – 在香港使用的Big5扩展
  • Shift_JIS - Japanese
    Shift_JIS –日文
  • EUC-JP - Japanese
    EUC-JP –日文

 


Tips and Notes
注意点

Note: Unrecognized character-sets will be ignored and replaced by ISO-8859-1.
注意:如果不可识别的字体设置[character-sets]将被忽略,并且会使用ISO-8859-1代替。


Example 1
案例1

<?php $str = "Jane &amp; &#039;Tarzan&#039;"; echo html_entity_decode($str); echo "<br />"; echo html_entity_decode($str, ENT_QUOTES); echo "<br />"; echo html_entity_decode($str, ENT_NOQUOTES); ?>

The browser output of the code above will be:
上述代码将输出下面的结果:

Jane & ‘Tarzan‘ Jane & ‘Tarzan‘ Jane & ‘Tarzan‘

If you select "View source" in the browser window, you will see the following HTML:
如果你在浏览器中选择“查看源文件”,你将会看到下面的HTML数据流:

<html> <body> Jane & &#039;Tarzan&#039;<br /> Jane & ‘Tarzan‘<br /> Jane & &#039;Tarzan&#039; </body> </html>

 


Example 2
案例2

<html> <body> <?php $str = "My name is &Oslash;yvind &Aring;sane. I&#039;m Norwegian"; echo html_entity_decode($str, ENT_QUOTES, "ISO-8859-1"); ?> </body> </html>

The browser output of the code above will be:
上述代码将输出下面的结果:

My name is Øyvind Åsane. I‘m Norwegian

If you select "View source" in the browser window, you will see the following HTML:
如果你在浏览器中选择“查看源文件”,你将会看到下面的HTML数据流:

<html> <body> My name is Øyvind Åsane. I‘m Norwegian </body> </html>

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