Write a program that asks the user to type two integers A and B and exchange the value of A and B?

Answer 1

// While this doesn't prompt the user for input, it does reverse the values' contents. $intA = '10';

$intB = '20';

$tmp = $intA;

$intB = $intA;

$intA = $tmp;

print $intA; // 20

print $intB; // 10 // An even quicker way is...

list($b,$a) = array($a,$b);