Sophie: php-manual-en-4.3.0-2mdk noarch

php-manual-en-4.3.0-2mdk.noarch.rpm

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>natsort</H1
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><P
>    (PHP 4 )</P
>natsort&nbsp;--&nbsp;
     Sort an array using a "natural order" algorithm
    </DIV
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><H2
>Description</H2
>void <B
CLASS="methodname"
>natsort</B
> ( array array)<BR
></BR
><P
>&#13;     This function implements a sort 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.sort.html"
><B
CLASS="function"
>sort()</B
></A
>) can be seen below:
    </P
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><B
>Example 1. <B
CLASS="function"
>natsort()</B
> example</B
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><PRE
CLASS="php"
>&#60;?php
$array1 = $array2 = array ("img12.png", "img10.png", "img2.png", "img1.png");

sort($array1);
echo "Standard sorting\n";
print_r($array1);

natsort($array2);
echo "\nNatural order sorting\n";
print_r($array2);
?&#62;</PRE
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>
    </P
><P
>&#13;     The code above will generate the following output:
    </P
><P
>&#13;     <TABLE
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>Standard sorting
Array
(
    [0] =&#62; img1.png
    [1] =&#62; img10.png
    [2] =&#62; img12.png
    [3] =&#62; img2.png
)

Natural order sorting
Array
(
    [3] =&#62; img1.png
    [2] =&#62; img2.png
    [1] =&#62; img10.png
    [0] =&#62; img12.png
)</PRE
></TD
></TR
></TABLE
>
     For more information see: Martin Pool's <A
HREF="http://naturalordersort.org/"
TARGET="_top"
>Natural Order String Comparison</A
>
     page.
    </P
><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>Note: </B
>
      If you're wanting to maintain index/value associations, consider 
      using <TT
CLASS="literal"
>usort($arr, 'strnatcmp')</TT
>.
     </P
></BLOCKQUOTE
></DIV
><P
>&#13;     See also <A
HREF="function.natcasesort.html"
><B
CLASS="function"
>natcasesort()</B
></A
>,
     <A
HREF="function.strnatcmp.html"
><B
CLASS="function"
>strnatcmp()</B
></A
>, and
     <A
HREF="function.strnatcasecmp.html"
><B
CLASS="function"
>strnatcasecmp()</B
></A
>.
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