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

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

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<HTML
><HEAD
><TITLE
>strnatcmp</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK
REL="HOME"
TITLE="PHP 手册"
HREF="index.html"><LINK
REL="UP"
TITLE="String 字符串处理函数"
HREF="ref.strings.html"><LINK
REL="PREVIOUS"
TITLE="strnatcasecmp"
HREF="function.strnatcasecmp.html"><LINK
REL="NEXT"
TITLE="strncasecmp"
HREF="function.strncasecmp.html"><META
HTTP-EQUIV="Content-type"
CONTENT="text/html; charset=UTF-8"></HEAD
><BODY
CLASS="refentry"
BGCOLOR="#FFFFFF"
TEXT="#000000"
LINK="#0000FF"
VLINK="#840084"
ALINK="#0000FF"
><DIV
CLASS="NAVHEADER"
><TABLE
SUMMARY="Header navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TH
COLSPAN="3"
ALIGN="center"
>PHP 手册</TH
></TR
><TR
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="bottom"
><A
HREF="function.strnatcasecmp.html"
ACCESSKEY="P"
>上一页</A
></TD
><TD
WIDTH="80%"
ALIGN="center"
VALIGN="bottom"
></TD
><TD
WIDTH="10%"
ALIGN="right"
VALIGN="bottom"
><A
HREF="function.strncasecmp.html"
ACCESSKEY="N"
>下一页</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><H1
><A
NAME="function.strnatcmp"
></A
>strnatcmp</H1
><DIV
CLASS="refnamediv"
><A
NAME="AEN227826"
></A
><P
>    (PHP 4, PHP 5)</P
>strnatcmp&nbsp;--&nbsp;
     String comparisons using a "natural order" algorithm
    </DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN227829"
></A
><H2
>Description</H2
>int <B
CLASS="methodname"
>strnatcmp</B
> ( string str1, string str2 )<BR
></BR
><P
>&#13;     This function implements a comparison algorithm that orders
     alphanumeric strings in the way a human being would, this is
     described as a "natural ordering".  An example of the difference
     between this algorithm and the regular computer string sorting
     algorithms (used in <A
HREF="function.strcmp.html"
><B
CLASS="function"
>strcmp()</B
></A
>) can be seen
     below:
     <DIV
CLASS="informalexample"
><P
></P
><A
NAME="AEN227842"
></A
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
CELLPADDING="5"
><TR
><TD
><code><font color="#000000">
<font color="#0000BB">&lt;?php<br />$arr1 </font><font color="#007700">= </font><font color="#0000BB">$arr2 </font><font color="#007700">= array(</font><font color="#DD0000">"img12.png"</font><font color="#007700">, </font><font color="#DD0000">"img10.png"</font><font color="#007700">, </font><font color="#DD0000">"img2.png"</font><font color="#007700">, </font><font color="#DD0000">"img1.png"</font><font color="#007700">);<br />echo </font><font color="#DD0000">"Standard string comparison\n"</font><font color="#007700">;<br /></font><font color="#0000BB">usort</font><font color="#007700">(</font><font color="#0000BB">$arr1</font><font color="#007700">, </font><font color="#DD0000">"strcmp"</font><font color="#007700">);<br /></font><font color="#0000BB">print_r</font><font color="#007700">(</font><font color="#0000BB">$arr1</font><font color="#007700">);<br />echo </font><font color="#DD0000">"\nNatural order string comparison\n"</font><font color="#007700">;<br /></font><font color="#0000BB">usort</font><font color="#007700">(</font><font color="#0000BB">$arr2</font><font color="#007700">, </font><font color="#DD0000">"strnatcmp"</font><font color="#007700">);<br /></font><font color="#0000BB">print_r</font><font color="#007700">(</font><font color="#0000BB">$arr2</font><font color="#007700">);<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
></TR
></TABLE
><P
></P
></DIV
>
     The code above will generate the following output:
     <DIV
CLASS="informalexample"
><P
></P
><A
NAME="AEN227844"
></A
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
CELLPADDING="5"
><TR
><TD
><PRE
CLASS="screen"
>Standard string comparison
Array
(
    [0] =&#62; img1.png
    [1] =&#62; img10.png
    [2] =&#62; img12.png
    [3] =&#62; img2.png
)

Natural order string comparison
Array
(
    [0] =&#62; img1.png
    [1] =&#62; img2.png
    [2] =&#62; img10.png
    [3] =&#62; img12.png
)</PRE
></TD
></TR
></TABLE
><P
></P
></DIV
>
     For more information see: Martin Pool's <A
HREF="http://sourcefrog.net/projects/natsort/"
TARGET="_top"
>Natural Order String Comparison</A
>
     page.
    </P
><P
>&#13;     Similar to other string comparison functions, this one returns
     &#60; 0 if <CODE
CLASS="parameter"
>str1</CODE
> is less than
     <CODE
CLASS="parameter"
>str2</CODE
>; &#62; 0 if
     <CODE
CLASS="parameter"
>str1</CODE
> is greater than
     <CODE
CLASS="parameter"
>str2</CODE
>, and 0 if they are equal.
    </P
><P
>&#13;     Note that this comparison is case sensitive.
    </P
><P
>&#13;     See also <A
HREF="function.preg-match.html"
><B
CLASS="function"
>preg_match()</B
></A
>,
     <A
HREF="function.strcasecmp.html"
><B
CLASS="function"
>strcasecmp()</B
></A
>, <A
HREF="function.substr.html"
><B
CLASS="function"
>substr()</B
></A
>,
     <A
HREF="function.stristr.html"
><B
CLASS="function"
>stristr()</B
></A
>, <A
HREF="function.strcmp.html"
><B
CLASS="function"
>strcmp()</B
></A
>,
     <A
HREF="function.strncmp.html"
><B
CLASS="function"
>strncmp()</B
></A
>, <A
HREF="function.strncasecmp.html"
><B
CLASS="function"
>strncasecmp()</B
></A
>,
     <A
HREF="function.strnatcasecmp.html"
><B
CLASS="function"
>strnatcasecmp()</B
></A
>, <A
HREF="function.strstr.html"
><B
CLASS="function"
>strstr()</B
></A
>, 
     <A
HREF="function.natsort.html"
><B
CLASS="function"
>natsort()</B
></A
> and <A
HREF="function.natcasesort.html"
><B
CLASS="function"
>natcasesort()</B
></A
>.
    </P
></DIV
><DIV
CLASS="NAVFOOTER"
><HR
ALIGN="LEFT"
WIDTH="100%"><TABLE
SUMMARY="Footer navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
><A
HREF="function.strnatcasecmp.html"
ACCESSKEY="P"
>上一页</A
></TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="index.html"
ACCESSKEY="H"
>起始页</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
><A
HREF="function.strncasecmp.html"
ACCESSKEY="N"
>下一页</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>strnatcasecmp</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="ref.strings.html"
ACCESSKEY="U"
>上一级</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
>strncasecmp</TD
></TR
></TABLE
></DIV
></BODY
></HTML
>