Home >>PHP Programs >How to remove duplicate characters from string

How to remove duplicate characters from string

Enter Your Word in a text box. Remove all duplicate characters from word if any one found.

<?php
extract($_POST);
error_reporting(1);

function remove_duplicate_char($str) 
{
//add one space between all characters.
$formatted = implode(' ', str_split($str));

//conver string into array's elements 
$a = explode(" ",$formatted); 


$j = strtolower($a[0]); 
$k="";


	for ($i=1;$i<=count($a);$i++) 
	{ 
		if(strtolower($j)!=strtolower($a[$i]))
		{
		$k .= $j." ";
		} 
		$j = $a[$i]; 
	}

	return $k; 
}
if(isset($remove))
{
echo "<p align='center'>".remove_duplicate_char($n)."</p>";
}
?>
<html>
	<head>
		<title>Remove Duplicate Character</title>
	<head>
	<body>
		<form method="post">
			<table align="center" border="1">
				<Tr>
				<Td>Enter Your Word</td>
				<td><input type="text" placeholder="eg- hello" name="n"/></td>
				</tr>
				<tr>
					<td colspan="2" align="center">
					<input type="submit" value="Remove Duplicate" name="remove"/>
					</td>
				</tr>
			</table>
		</form>
	</body>
</html>

« Previous Next »

PHP Programs Find Minimum value of an array PHP get max value in array Find second largest number in array PHP get highest value in multidimensional array Sort an array in PHP Sort an array in descending order in PHP Age calculator in PHP How to Get the Current Page URL Convert Number into Words in PHP Simple Steps to Fix 403 Forbidden Errors How To Change Port of Apache Get Multiple checkbox value in PHP How to Print January to December using PHP PHP Read Pdf file How to remove duplicate characters from string How to reverse words in a string How to Get Difference between two dates Sum of two numbers without using + operator in PHP Check A Number is Prime or Not in PHP How to get IP address in PHP PHP Program to find the area of a given triangle PHP Program to find armstrong number PHP Program to check number is even or odd PHP Program to print the factorial of a given number PHP Program to print the Fibonacci series

No Sidebar ads