Is it possible to limit the number of characters in a textarea using PHP alone, or does it require JavaScript?

To limit the number of characters in a textarea using PHP alone, you can set the maxlength attribute in the HTML form. However, this attribute is not supported by all browsers, so it's recommended to also use JavaScript to provide a more reliable character limit functionality. With PHP alone, you can validate the input data on the server-side to ensure it doesn't exceed the desired character limit. 

<form method="post">
    <textarea name="message" rows="4" cols="50" maxlength="100"></textarea>
    <input type="submit" value="Submit">
</form>

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $message = $_POST['message'];
    
    if (strlen($message) > 100) {
        echo "Message should not exceed 100 characters.";
    } else {
        // Process the form data
    }
}
?>

Keywords

PHP textarea character limit validation client-side JavaScript

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