Sophie: php-manual-zh-5.2.4-1mdv2008.1 noarch

php-manual-zh-5.2.4-1mdv2008.1.noarch.rpm

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><H1
><A
NAME="function.htmlspecialchars"
></A
>htmlspecialchars</H1
><DIV
CLASS="refnamediv"
><A
NAME="AEN225442"
></A
><P
>    (PHP 3, PHP 4, PHP 5)</P
>htmlspecialchars&nbsp;--&nbsp;
     Convert special characters to HTML entities
    </DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN225445"
></A
><H2
>Description</H2
>string <B
CLASS="methodname"
>htmlspecialchars</B
> ( string string [, int quote_style [, string charset]] )<BR
></BR
><P
>&#13;     Certain characters have special significance in HTML, and should
     be represented by HTML entities if they are to preserve their
     meanings. This function returns a string with some of these
     conversions made; the translations made are those most
     useful for everyday web programming. If you require all HTML
     character entities to be translated, use
     <A
HREF="function.htmlentities.html"
><B
CLASS="function"
>htmlentities()</B
></A
> instead.
    </P
><P
>&#13;     This function is useful in preventing user-supplied text from
     containing HTML markup, such as in a message board or guest book
     application.  The optional second argument, <CODE
CLASS="parameter"
>quote_style</CODE
>, tells
     the function what to do with single and double quote characters.
     The default mode, <TT
CLASS="constant"
><B
>ENT_COMPAT</B
></TT
>, is the backwards compatible mode
     which only translates the double-quote character and leaves the
     single-quote untranslated.  If <TT
CLASS="constant"
><B
>ENT_QUOTES</B
></TT
> is set, both single and
     double quotes are translated and if <TT
CLASS="constant"
><B
>ENT_NOQUOTES</B
></TT
> is set neither
     single nor double quotes are translated.
    </P
><P
>&#13;     The translations performed are:
     <P
></P
><UL
><LI
><P
>&#13;        '&#38;' (ampersand) becomes '&#38;amp;'
       </P
></LI
><LI
><P
>&#13;        '"' (double quote) becomes '&#38;quot;' when <TT
CLASS="constant"
><B
>ENT_NOQUOTES</B
></TT
>
        is not set.
       </P
></LI
><LI
><P
>&#13;        ''' (single quote) becomes '&#38;#039;' only when
        <TT
CLASS="constant"
><B
>ENT_QUOTES</B
></TT
> is set.
       </P
></LI
><LI
><P
>&#13;        '&#60;' (less than) becomes '&#38;lt;'
       </P
></LI
><LI
><P
>&#13;        '&#62;' (greater than) becomes '&#38;gt;'
       </P
></LI
></UL
>
     <TABLE
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BORDER="0"
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CLASS="EXAMPLE"
><TR
><TD
><DIV
CLASS="example"
><A
NAME="AEN225480"
></A
><P
><B
>例 1. <B
CLASS="function"
>htmlspecialchars()</B
> example</B
></P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
CELLPADDING="5"
><TR
><TD
><code><font color="#000000">
<font color="#0000BB">&lt;?php<br />$new </font><font color="#007700">= </font><font color="#0000BB">htmlspecialchars</font><font color="#007700">(</font><font color="#DD0000">"&lt;a href='test'&gt;Test&lt;/a&gt;"</font><font color="#007700">, </font><font color="#0000BB">ENT_QUOTES</font><font color="#007700">);<br />echo </font><font color="#0000BB">$new</font><font color="#007700">; </font><font color="#FF8000">// &amp;lt;a href=&amp;#039;test&amp;#039;&amp;gt;Test&amp;lt;/a&amp;gt;<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
></TR
></TABLE
></DIV
></TD
></TR
></TABLE
>
    </P
><P
>&#13;     Note that this function does not translate anything beyond what
     is listed above. For full entity translation, see
     <A
HREF="function.htmlentities.html"
><B
CLASS="function"
>htmlentities()</B
></A
>.  Support for the optional
     second argument was added in PHP 3.0.17 and PHP 4.0.3.
    </P
><P
>&#13;     The third argument <CODE
CLASS="parameter"
>charset</CODE
> defines character set
     used in conversion. The default character set is ISO-8859-1. Support for
     this third argument was added in PHP 4.1.0.
    </P
><P
>&#13; PHP 4.3.0 及其后续版本支持如下字符集。
 <DIV
CLASS="table"
><A
NAME="AEN225489"
></A
><P
><B
>表 1. 已支持字符集</B
></P
><TABLE
BORDER="1"
CLASS="CALSTABLE"
><COL><COL><COL><THEAD
><TR
><TH
>字符集</TH
><TH
>别名</TH
><TH
>描述</TH
></TR
></THEAD
><TBODY
><TR
><TD
>ISO-8859-1</TD
><TD
>ISO8859-1</TD
><TD
>&#13;      西欧，Latin-1
     </TD
></TR
><TR
><TD
>ISO-8859-15</TD
><TD
>ISO8859-15</TD
><TD
>&#13;      西欧，Latin-9。增加了 Latin-1（ISO-8859-1）中缺少的欧元符号、法国及芬兰字母。
     </TD
></TR
><TR
><TD
>UTF-8</TD
><TD
>&nbsp;</TD
><TD
>&#13;      ASCII 兼容多字节 8-bit Unicode。
     </TD
></TR
><TR
><TD
>cp866</TD
><TD
>ibm866, 866</TD
><TD
>&#13;      DOS-特有的 Cyrillic 字母字符集。PHP 4.3.2 开始支持该字符集。
     </TD
></TR
><TR
><TD
>cp1251</TD
><TD
>Windows-1251, win-1251, 1251</TD
><TD
>&#13;      Windows-特有的 Cyrillic 字母字符集。PHP 4.3.2 开始支持该字符集。
     </TD
></TR
><TR
><TD
>cp1252</TD
><TD
>Windows-1252, 1252</TD
><TD
>&#13;      Windows 对于西欧特有的字符集。
     </TD
></TR
><TR
><TD
>KOI8-R</TD
><TD
>koi8-ru, koi8r</TD
><TD
>&#13;      俄文。PHP 4.3.2 开始支持该字符集。
     </TD
></TR
><TR
><TD
>BIG5</TD
><TD
>950</TD
><TD
>&#13;      繁体中文，主要用于中国台湾。
     </TD
></TR
><TR
><TD
>GB2312</TD
><TD
>936</TD
><TD
>&#13;      简体中文，国际标准字符集。
     </TD
></TR
><TR
><TD
>BIG5-HKSCS</TD
><TD
>&nbsp;</TD
><TD
>&#13;      繁体中文，Big5 的延伸，主要用于香港。
     </TD
></TR
><TR
><TD
>Shift_JIS</TD
><TD
>SJIS, 932</TD
><TD
>&#13;      日文。
     </TD
></TR
><TR
><TD
>EUC-JP</TD
><TD
>EUCJP</TD
><TD
>&#13;      日文。
     </TD
></TR
></TBODY
></TABLE
></DIV
>
 <DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>注意: </B
>
   ISO-8859-1 将代替任何其它无法识别的字符集。
  </P
></BLOCKQUOTE
></DIV
>
</P
><P
>&#13;     See also <A
HREF="function.get-html-translation-table.html"
><B
CLASS="function"
>get_html_translation_table()</B
></A
>,
     <A
HREF="function.htmlspecialchars-decode.html"
><B
CLASS="function"
>htmlspecialchars_decode()</B
></A
>,
     <A
HREF="function.strip-tags.html"
><B
CLASS="function"
>strip_tags()</B
></A
>,
     <A
HREF="function.htmlentities.html"
><B
CLASS="function"
>htmlentities()</B
></A
>, and <A
HREF="function.nl2br.html"
><B
CLASS="function"
>nl2br()</B
></A
>.
    </P
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