PHP Program to Display Fibonacci Series

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What is Fibonacci Series?

A series of numbers in which each number (Fibonacci number) is the sum of the two preceding numbers, starting from 0 and 1, i.e., 0, 1, 1, 2, 3, 5, 8, 13, 21, and so on.

Tips: It is recommended to use our online Fibonacci Series calculator for better understanding.

Fibonacci Series between the Given Limit

In the following example, we will find the Fibonacci Series between 0 and 100.


PHP Compiler
<?php $limit = 100; $a = 0; $b = 1; $c = 0; echo "Fibonacci series upto $limit: <br>"; echo "$a, $b"; while($c <= $limit) { $c = $a + $b; $a = $b; $b = $c; if($c <= $limit) echo ", $c"; } ?>


Fibonacci series upto 100: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89


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