Subversion-Projekte lars-tiefland.php_share

<?

// $Id: demo.php,v 1.5 2007/02/06 06:00:46 terrafrost Exp $

// Example of how to use of BigInteger.  The output can be compared to the output that the BCMath functions would yield.

// bcpowmod is included with Math_BigInteger.php via PHP_Compat.

include('../Math/BigInteger.php');

$x = mt_rand(1,10000000);

$y = mt_rand(1,10000000);

$z = mt_rand(1,10000000);

$_x = new Math_BigInteger($x);

$_y = new Math_BigInteger($y);

$_z = new Math_BigInteger($z);

echo "\$x = $x;\r\n";

echo "\$y = $y;\r\n";

echo "\$z = $z;\r\n";

echo "\r\n";

$result = bcadd($x,$y);

$_result = $_x->add($_y);

echo "\$result = \$x+\$y;\r\n";

echo "$result\r\n";

echo $_result->toString();

echo "\r\n\r\n";

$result = bcsub($result,$y);

$_result = $_result->subtract($_y);

echo "\$result = \$result-\$y;\r\n";

echo "$result\r\n";

echo $_result->toString();

echo "\r\n\r\n";

$result = bcdiv($x,$y);

list($_result,) = $_x->divide($_y);

echo "\$result = \$x/\$y;\r\n";

echo "$result\r\n";

echo $_result->toString();

echo "\r\n\r\n";

$result = bcmod($y,$z);

list(,$_result) = $_y->divide($_z);

echo "\$result = \$x%\$y;\r\n";

echo "$result\r\n";

echo $_result->toString();

echo "\r\n\r\n";

$result = bcmul($x,$z);

$_result = $_x->multiply($_z);

echo "\$result = \$x*\$z;\r\n";

echo "$result\r\n";

echo $_result->toString();

echo "\r\n\r\n";

$result = bcpowmod($x,$y,$result);

$_result = $_x->modPow($_y,$_result);

echo "\$result = (\$x**\$y)%\$result;\r\n";

echo "$result\r\n";

echo $_result->toString();

echo "\r\n\r\n";

// modInverse isn't demo'd because no equivalent to it exists in BCMath.

?>