The reverse of a string PHP Program with form and database

The reverse of a string PHP Program with form and database
In this tutorial, we will learn about the followings.

The reverse of a string- PHP Program
The reverse of a string PHP Program with form and database

The reverse of a string- PHP Program.

In this example, programmer stores the values in the variables. However, if you interested to see the program about taking values in the form, please see example 2.

<?php
function rev_str($str)
{
 $n = strlen($str);
 if($n == 1)
   {
    return $str;
   }
 else
   {
   $n--;
   return rev_str(substr($str,1, $n)) . substr($str, 0, 1);
   }
}
print_r(rev_str('T4Tutorials.com')."\n");
?>

The reverse of a string PHP Program with form and database.

In this example, we will take the inputs from the user and store them in variables.

<html>
<head><title>Reverse String</title></head>

<body>

<form method="post">
Enter String:
<input type="text" name="str"/>
<input type="submit" name="ok"/>

</form>
<?php
if(isset($_POST['ok'])){
$s=$_POST['str'];
$rev=strrev($s);
echo"$rev";

$conn = new mysqli("localhost", "root", "","reverse");

$sql = "INSERT INTO MYTable (String, ReverseString)
VALUES ('$s', '$rev')";

if ($conn->query($sql) === TRUE) {
    echo "New record created successfully";
} else {
    echo "Error: " . $sql . "<br>" . $conn->error;
}

}
?>
</body>
</html>

Database of the reverse of a string.

The reverse of a string PHP Program with form and database In this tutorial, we will learn about the followings.

The reverse of a string PHP Program with form and database
In this tutorial, we will learn about the followings.