In this article I would like to share with you guys how to create fibonacci numbers using PHP as my programming. The program will ask the user to give number and then it will generate the fibonacci number series.
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Sample Program Output
Program Listing
<!-- index.php
Author : Mr. Jake Rodriguez Pomperada, MAED-IT, MIT
Website : http://www.jakerpomperada.com
http://www.jakerpomperada.blogspot.com
Email : jakerpomperada@gmail.com
Address : Bacolod City, Negros Occidental, Philippines
-->
<html>
<style>
body {
font-size: 20;
font-family:sans-serif;
font-weight: bold;
}
input {
font-size: 20px;
font-weight: bold;
}
/* http://cssdemos.tupence.co.uk/button-styling.htm */
input#shiny {
padding: 4px 20px;
/*give the background a gradient*/
background:#ffae00; /*fallback for browsers that don't support gradients*/
background: -webkit-linear-gradient(top, blue,blue);
background: -moz-linear-gradient(top, blue, blue);
background: -o-linear-gradient(top, blue, blue);
background: linear-gradient(top, blue, blue);
border:2px outset #dad9d8;
/*style the text*/
font-family:Andika, Arial, sans-serif; /*Andkia is available at http://www.google.com/webfonts/specimen/Andika*/
font-size:1.1em;
letter-spacing:0.05em;
text-transform:uppercase;
color:#fff;
text-shadow: 0px 1px 10px #000;
/*add to small curve to the corners of the button*/
-webkit-border-radius: 15px;
-moz-border-radius: 15px;
border-radius: 15px;
/*give the button a drop shadow*/
-webkit-box-shadow: rgba(0, 0, 0, .55) 0 1px 6px;
-moz-box-shadow: rgba(0, 0, 0, .55) 0 1px 6px;
box-shadow: rgba(0, 0, 0, .55) 0 1px 6px;
}
/****NOW STYLE THE BUTTON'S HOVER STATE***/
input#shiny:hover, input#shiny:focus {
border:2px solid #dad9d8;
}
</style>
<body>
<?php
$values = $_POST['inputText'];
if(isset($_POST['ClearButton'])){
$values = "";
}
?>
<br>
<h4> Fibonacci Numbers in PHP </h4>
<form action="" method="post">
Give a Number
<input type="text" name="inputText" size="5" maxlength="5"
value="<?php echo $values; ?>" style="width:100px; height:30px;" required autofocus=""/>
<br><br>
<input id="shiny" type="submit" value="Ok" name="SubmitButton"/>
<input id="shiny" type="submit" value="Clear" name="ClearButton"/>
</form>
<?php
// Function to generate the fibonacci series
function DiplayFibonacciSeries($n)
{
$first = 0;
$second = 1;
echo "<h4>Fibonacci Series</h4>";
echo $first.' '.$second.' ';
for($i = 2; $i < $n; $i++){
$third = $first + $second;
echo $third.' ';
$first = $second;
$second = $third;
}
}
$values = $_POST['inputText'];
if(isset($_POST['SubmitButton']))
{
$n= (int)$values;
DiplayFibonacciSeries($n);
}
?>
</body>
</html>
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