# Field Manual for Hackers

## Labels

1.   Reverse number.
2. Sum of all digit.
3. Number of digit.
4. Product of all digit.
5. Big digit.
6. Smallest digit.

#### 1 comment:

1. \$number=\$_POST["num"];
\$choice=(int)\$_POST["c"];
\$cH=\$_POST["ch"];
\$temp=\$number;
\$sum=0;
echo gettype(\$choice);
switch(\$choice)
{
case 1:echo "Reverse a number
";
\$reverse=0;
while(\$temp>=1)
{
\$reverse=\$reverse*10+\$temp%10;
\$temp/=10;
}
echo "Reverse of number \$number is \$reverse";
break;
case 2:echo"Sum of all digits
";
while(\$temp>=1)
{
\$sum=\$temp%10;
\$temp/=10;
}
echo "Sum of digits of number \$number is \$sum";
break;
case 3:echo "Number of digits
";
\$nodigits=0;
while(\$temp>=1)
{
\$nodigits++;
\$temp/=10;
}
echo "Number of digits in \$number = \$nodigits";
break;
case 4:echo "Product of all digit.
";
\$product=1;
while(\$temp>=1)
{
\$product*=\$temp%10;
\$temp/=10;
}
echo "Product of the digits of \$number is =\$product";
break;
case 5:echo "Big digit.
";
\$big=\$temp%10;
while(\$temp>=1)
{
if(\$big<\$temp%10)
\$big=\$temp%10;
\$temp/=10;
}
echo "Biggest digit in \$number is \$big";
break;
case 6:echo "Smallest digit.
";
\$small=\$temp%10;
while(\$temp>=1)
{
if(\$small>\$temp%10)
\$small=\$temp%10;
\$temp/=10;
}
echo "Smallest digit in \$number is \$small";
break;

default: echo"Wrong choice";
}