в 10:37, 26 мая 2010

2010-05-26T10:37:31Z

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2010-05-26T07:06:04Z

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==Dice Rolling Simulator==



<source lang="html4strict">

<?php
function roll_dice($number, $sides, $values = false) {
$dice = array();
for ($i = 0; $i < $number; $i++) {
$dice[] = rand(1, $sides);
}
if ($values) {
return $dice;
} else {
return array_sum($dice);
}
}
$roll_3d6 = roll_dice(3, 6);
echo "<pre>Dice roll = {$roll_3d6}\n";
$rm_stats = roll_dice(10, 100, true);
print_r($rm_stats);
echo "</pre>";
?>

</source>

==Generate random numbers (integer values) between 0 and MAX_RAND by calling rand() or mt_rand() without any arguments==



<source lang="html4strict">

<?php
echo "rand() = " . rand() . "\n";
echo "mt_rand() = " . mt_rand() . "\n";
?>

</source>

==int rand ( [int min, int max] ) returns random numbers==



<source lang="html4strict">

<?
$random = rand( );
$randrange = rand(1,10);
?>

</source>

==Random Images==



<source lang="html4strict">

<html>
<head>
<title>Random Images</title>
</head>
<body bgcolor = "#000000" >
<?php
srand( microtime() * 1000000 );
$num = rand( 1, 4 );
switch( $num )
{
case 1 : $car = "a.jpg"; $url="a.php"; break;
case 2 : $car = "f.jpg"; $url="f.php"; break;
case 3 : $car = "j.jpg"; $url = "j.php"; break;
case 4 : $car = "p.jpg"; $url = "p.php"; break;
}
$banner = "<a href=\"$url\"> ";
$banner.= "<img src=\"$car\" ";
$banner.= "width=\"380\" height=\"110\" border=\"0\" >";
$banner.="</a>";
echo( $banner );
?>
</body>
</html>

</source>

==Random Numbers==



<source lang="html4strict">

<html>
<head>
<title>Random Numbers</title>
</head>
<body>
<?php
srand( microtime() * 1000000 );
$num = rand( 1, 100 );
echo( "Microtime:" . microtime() . "<br>");
echo( "A random number: " . $num . "<br>");
$num = rand( 1, 100 );
echo( "Another random number:" . $num );
?>
</body>
</html>

</source>

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PHP/Math/rand - История изменений

в 10:37, 26 мая 2010

Admin: 1 версия