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

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

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>uksort</H1
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>    (PHP 3&#62;= 3.0.4, PHP 4 )</P
>uksort&nbsp;--&nbsp;
     Sort an array by keys using a user-defined comparison function
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>Description</H2
>void <B
CLASS="methodname"
>uksort</B
> ( array array, callback cmp_function)<BR
></BR
><P
>&#13;     This function will sort the keys of an array using a
     user-supplied comparison function.  If the array you wish to sort
     needs to be sorted by some non-trivial criteria, you should use
     this function.
    </P
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>Example 1. <B
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>uksort()</B
> example</B
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>function cmp ($a, $b) {
    if ($a == $b) return 0;
    return ($a &#62; $b) ? -1 : 1;
}

$a = array (4 =&#62; "four", 3 =&#62; "three", 20 =&#62; "twenty", 10 =&#62; "ten");

uksort ($a, "cmp");

while (list ($key, $value) = each ($a)) {
    echo "$key: $value\n";
}</PRE
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>&#13;     This example would display:
    </P
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>&#13;     <TABLE
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>20: twenty
10: ten
4: four
3: three</PRE
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>
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>&#13;     See also <A
HREF="function.usort.html"
><B
CLASS="function"
>usort()</B
></A
>, <A
HREF="function.uasort.html"
><B
CLASS="function"
>uasort()</B
></A
>,
     <A
HREF="function.sort.html"
><B
CLASS="function"
>sort()</B
></A
>, <A
HREF="function.asort.html"
><B
CLASS="function"
>asort()</B
></A
>,
     <A
HREF="function.arsort.html"
><B
CLASS="function"
>arsort()</B
></A
>, <A
HREF="function.ksort.html"
><B
CLASS="function"
>ksort()</B
></A
>,
     <A
HREF="function.natsort.html"
><B
CLASS="function"
>natsort()</B
></A
>, and <A
HREF="function.rsort.html"
><B
CLASS="function"
>rsort()</B
></A
>.
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