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My String Example

CODE FOLLOWS

<?php



include('../includes/header.php');



// code

error_reporting(E_ALL);    // set error reporting to all



echo('<h1>My String Example</h1>');



$step = isset($_POST['step']) ? $_POST['step'] : 0;

$animal = isset($_POST['animal']) ? $_POST['animal'] : '';

$place = isset($_POST['place']) ? $_POST['place'] : '';



// filter all input taken from the Browser

$step = htmlentities($step);

$animal = htmlentities($animal);

$place = htmlentities($place);



if ($step == 0)    // first time into this form

{

    ?>



    <form action="strings5.php" method="POST">

        <label for="animal">Input an Animal: </label>

        <input type="text" size="36" id="animal" name="animal" value="">

        <br><br>

        <label for="place">Input a Place: </label>

        <input type="text" size="36" id="place" name="place" value="">

        <br><br>

        <input type="hidden" name="step" value="1">

        <input type="submit" name="submit" value="Submit">

    </form>



    <?php

} else  // create the string

{

    $sentence = "The {$animal} went to the {$place}.";

    $length = strlen($sentence);

    $tcount = substr_count($sentence, "t") + substr_count($sentence, "T");

    $rot = str_rot13($sentence);





    echo($sentence . nl2br("\n\nThe sentence above is {$length} characters long.\nThe letter t appears {$tcount} times.

    \nThe ROT13 cipher of the sentence is: {$rot}\n\n"));





    }



    // provide a form to try again

if (!$step == 0){

    ?>



    <form action="strings5.php" method="POST">

        <input type="hidden" name="step" value="0">

        <input type="submit" name="submit" value="Try Again">

    </form>



    <?php

}

include('../includes/footer.php');

?>
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