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

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

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>srand</H1
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>    (PHP 3, PHP 4 )</P
>srand&nbsp;--&nbsp;Seed the random number generator</DIV
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><H2
>Description</H2
>void <B
CLASS="methodname"
>srand</B
> ( int seed)<BR
></BR
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>&#13;     Seeds the random number generator with
     <TT
CLASS="parameter"
><I
>seed</I
></TT
>.
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>// seed with microseconds
function make_seed() {
    list($usec, $sec) = explode(' ', microtime());
    return (float) $sec + ((float) $usec * 100000);
}
srand(make_seed());
$randval = rand();</PRE
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><B
>Note: </B
>
      Since PHP 4.2.0 it's no longer necessary to seed the random number
      generator before using it.
     </P
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></DIV
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>&#13;     See also <A
HREF="function.rand.html"
><B
CLASS="function"
>rand()</B
></A
>,
     <A
HREF="function.getrandmax.html"
><B
CLASS="function"
>getrandmax()</B
></A
> and
     <A
HREF="function.mt-srand.html"
><B
CLASS="function"
>mt_srand()</B
></A
>.
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