PHP Program to print Fibonacci Series
By SankethIn this PHP tutorial, you are going to learn about creating a PHP program to print Fibonacci Series.
Fibonacci Series is a series of numbers where the sum of the 2 preceding numbers will be the third number.
The sum of first and second will be the third and second and third will be the fourth and it continues in a similar manner.
Program to print Fibonacci Series :
To print the Fibonacci series we need to use the for loop in order to repeat the operations.
For every Fibonacci series, the first two terms of the series are 0 and 1.
Algorithm:
- As we discussed above the first two numbers should be 0 and 1 so as our first step initialize 2 variables and assign these values to them.
- Now create a new variable and assign the value to number of terms we needed.
- Then print a statement to indicate the beginning of the series.
- Now create a for loop and repeat it for the required number of times we passed.
- Then create an if condition to print the first number 0.
- Now in any other case, we would add the first and second number and save it in next.
- Then we would print the next.
- By doing so you would get your desired series so just execute the program.
Example:
Now we are going to print Fibonacci series of 15 terms.
<?php
$first = 0;
$second = 1;
$number_of_terms=15;
echo("fibonnacci series is");
for ($c = 0; $c < $number_of_terms; $c++)
{
if ($c <= 1)
$next = $c;
else
{
$next = $first + $second;
$first = $second;
$second = $next;
}
echo $next;
echo ",";
}
?>
Output:
0,1,1,2,3,5,8,13,21,34,55,89,144,233,377,
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