In this article I would like to share with you a sample program that enables the user to count the number of capital letters in a given word or sentence by our user. I wrote a function called count_capital_letters to count the occurrence of capital letters in a given word or sentence. I hope you will find my work useful in your programming assignments or projects in PHP.
If you have some questions please send me an email at jakerpomperada@yahoo.com and jakerpomperada@gmail.com. People here in the Philippines who wish to contact me can reach me at my mobile number 09173084360.
Sample Output of Our Program
Program Listing
<html>
<title> Capital Letters Counter</title>
<style>
body {
font-size:20px;
font-family:arial;
color:blue;
}
</style>
<?php
error_reporting(0);
$values = $_POST['value'];
// function to count the number of capital letters
// in a given word or sentence.
function count_capital_letters($string) {
return strlen(preg_replace("/[^A-Z]/","", $string));
}
if(isset($_POST['check'])) {
if ($values==" ") {
echo "<script>";
echo "alert('It Cannot Be Empty!!! Please enter a number.');";
echo "</script>";
$values=" ";
$results=" ";
}
if ($values != " ") {
$results .= "==== REPORT ==== ";
$results .= "<br><br>";
$results .= "The sentence or the word is "
."<font color='RED'>".$values."</font>"."."
."<br><br>";
$results .= "The number of capital letters is "
."<font color='RED'>".count_capital_letters($values)."</font> ".
" in a given word or sentence.";
}
}
if(isset($_POST['clear'])) {
$values=" ";
$results= " ";
}
?>
<body style='background-color:lightgreen'>
<div style='width:800px;margin:auto'>
<br> <h1 align="center">Capital Letters Counter in PHP</h2>
<br>
<form action="" method="post">
Enter a Word or a Sentence : <input type="text" name="value" value="<?php echo $values; ?>" autofocus size=40/>
<br><br>
<input type="submit" name="check" value="Count Capital Letters"
title="Click here to count the number of capital letters in a given word or sentence."/>
<input type="submit" name="clear" value="Clear"
title="Click here to clear text box and values on the screen"/>
</form>
<br>
<?php
echo $results;
?>
</body>
</html>
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