What are some common ways to input text on a website and display it immediately using PHP?

One common way to input text on a website and display it immediately using PHP is to use a form with a text input field. When the form is submitted, the input text is sent to a PHP script that processes the input and displays it on the webpage. This can be achieved by using the $_POST superglobal to retrieve the input text and then echoing it out on the page. 

<!DOCTYPE html>
<html>
<head>
    <title>Input Text Example</title>
</head>
<body>
    <form method="post" action="">
        <input type="text" name="input_text">
        <input type="submit" value="Submit">
    </form>

    <?php
    if ($_SERVER["REQUEST_METHOD"] == "POST") {
        $input_text = $_POST["input_text"];
        echo "You entered: " . $input_text;
    }
    ?>
</body>
</html>

Keywords

HTML form input field PHP echo real-time updating AJAX

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