Untitled

<!DOCTYPE html>
<html>
<head>
    <title>Word Mapping</title>
</head>
<body>
<form method="get">
    <input type="text" name="input">
    <input type="submit">
</form>

<?php
if (isset($_GET['input'])) {
    $input = $_GET['input'];
    $input = preg_split('/[.!\/\s]+/', trim($input), -1, PREG_SPLIT_NO_EMPTY);
    $input = array_map('strtolower', $input);
    $inputCountValues = array_count_values($input);
    $output = <<<HTML
<table border="2">
HTML;
    foreach ($inputCountValues as $key => $value) {
        $output .= "<tr><td>$key</td><td>$value</td></tr>";
    }
    $output .= <<<HTML
</table>
HTML;
    echo $output;
}
?>
</body>
</html>