How to make input type="text" input value persist after page refresh?

Question

PHP

I have a text field (for a calculator on a site), I need it to save the value after refreshing the page

Answer 1

Write to sessionStorage: https://developer.mozilla.org/en/docs/Web/API/Wind ... /Web/API/Wind... If there is no support in the browsers you need, then in cookies: https://developer.mozilla.org/en/docs/Web/API/Docu... Bibla for convenient work with cookies: https://www.npmjs.com/package/js-cookies

Answer 2

Cookies

<?php 
if(!empty($_POST)) {     
         SetCookie("email", $_POST['email'],time()[phone]);     
}

$email = !empty($_COOKIE['email']) ? $_COOKIE['email'] : '';

?>

<form>
    <input type="text" name="email" value="<?php echo $email; ?>" />
</form>