Many time interviewer asked me to write a program to reverse a number. So i am sharing this program with you.
Steps to reverse a number:
1. Take modulas(%) of number by 10.
2. Now divide number by 10.
3. Repeat these steps until condition matches.
That's it you got the number reversed.
How to reverse number using php
123456789 // actual number
987654321 // reversed number
Steps to reverse a number:
1. Take modulas(%) of number by 10.
2. Now divide number by 10.
3. Repeat these steps until condition matches.
That's it you got the number reversed.
<?php
echo 'How to reverse number using php ';
echo '<br>';
echo $numberToReverse = 123456789;
echo '<br>';
if($numberToReverse > 0){
while($numberToReverse){
echo $numberToReverse%10;
$numberToReverse = (int)($numberToReverse/10);
}
}else{
echo 'number should be grater then zero.';
}
?>
Output is: echo 'How to reverse number using php ';
echo '<br>';
echo $numberToReverse = 123456789;
echo '<br>';
if($numberToReverse > 0){
while($numberToReverse){
echo $numberToReverse%10;
$numberToReverse = (int)($numberToReverse/10);
}
}else{
echo 'number should be grater then zero.';
}
?>
How to reverse number using php
123456789 // actual number
987654321 // reversed number
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