<?php $a = 10; $b = 20; echo $a, $b; $a=$a+$b; $b=$a-$b;

1. Write a function to swap two values ?
$a = 10;
$b = 20;
echo $a, $b;
swap(); // If u want u can pass parameters
echo $a, $b; // It should print 20 , 10

Question Posted / sunil kumar

14 Answers
39260 Views
Aquasol, Infosys, TCS, Torque Infotech, I also Faced
E-Mail Answers

Answer Posted / sunil kumar

<?php
$a = 10;
$b = 20;
echo $a, $b;
$a=$a+$b;
$b=$a-$b;
$a=$a-$b;
echo "<br>";
echo $a, $b;

?>

Is This Answer Correct ?

9 Yes

2 No

Post New Answer View All Answers

Please Help Members By Posting Answers For Below Questions

What is sticky form in php?

842

Can we use include ("xyz.php") two times in a php page "index.php"?

971

Is python better than php?

951

What should we do to be able to export data into an excel file?

964

Write a program in php to find the occurrence of a word in a string?

1035

Tell me what is the difference between unset() and unlink()?

997

What is the goto statement useful for?

954

What's php?

1009

What is string and its function?

921

How do you check if a variable has been set in php?

916

What is delimiter php?

939

Why delimiter is used in mysql?

1012

What is form validation in php?

967

which will print out the php call stack?

924

What is the difference between for and foreach loop in php?

1036