$x=$a; $a=$b; $b=$x; echo $a.",".$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 / nikunj kansara

14 Answers
39762 Views
Aquasol, Infosys, TCS, Torque Infotech, I also Faced
E-Mail Answers

Answer Posted / nikunj kansara

$x=$a;
$a=$b;
$b=$x;
echo $a.",".$b;

Is This Answer Correct ?

11 Yes

4 No

Post New Answer View All Answers

Please Help Members By Posting Answers For Below Questions

Tell me what is the default session time in php?

991

What is the use of $_server and $_env?

1050

Is overloading possible in php?

973

What are session variables in php?

1033

What are the differences between php3 and php4 and php5? What is the current stable version of php? What advance thing in php7?

1049

Explain me what is the difference between $_files['userfile']['name'] and $_files['userfile']['tmp_name']?

908

armstrong number by using php while number is given by the keyboard.?

2183

Tell me what is needed to be able to use image function?

981

What difference between require() and require_once()?

1093

What is local variable in php?

984

Is php 7.0 stable?

930

How do I expire a php session after 30 minutes?

1053

What's the output of the ucwords function in this example?

1046

Is it more secure to use cookies to transfer session ids?

965

What is different between software and app

1757