Keep value in form after submitting PHP

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I\'m calling these functions from a controller to get the form and the values from the form. My question is, how can I keep the values in the form after a submit fails? I\'ve tr

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栀梦

2021-01-25 05:09

Before your form, instantiate the object which will receive the $_POST data

$userbox = new Userbox;

Then process $_POST data, if there is any:

if(isset($_POST['submit']) && $_POST['submit'] === 'userboxsubmit'){
  $userbox->process_post(); 
}

Then output the form:

<input type="text" name="myField1" value="<?php echo $userbox->myField1; ?>" />

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失恋的感觉

2021-01-25 05:18

[edit: run this on localhost]

autocomplete does not work on all browsers; moreover, it is only a hint, so cookies are the only option left. The solution below works fine, however it will be great if other users contribute alternate ways for this popular request : Keep value in form after submitting.

<html>
  <head>
    <script>
        function setCookie(c_name, value, exdays) {
            var exdate = new Date();
            exdate.setDate(exdate.getDate() + exdays);
            var c_value = escape(value) + ((exdays == null) ? "" : "; expires=" + exdate.toUTCString());
            document.cookie = c_name + "=" + c_value;
        }

        function getCookie(c_name) {
            var i, x, y, ARRcookies = document.cookie.split(";");
            for (i = 0; i < ARRcookies.length; i++) {
                x = ARRcookies[i].substr(0, ARRcookies[i].indexOf("="));
                y = ARRcookies[i].substr(ARRcookies[i].indexOf("=") + 1);
                x = x.replace(/^\s+|\s+$/g, "");
                if (x == c_name) {
                    return unescape(y);
                }
            }
        }

        function store() {
            var inputs, index;

            inputs = document.getElementsByTagName('input');
            for (index = 0; index < inputs.length - 1; ++index) {
                setCookie(inputs[index].name,inputs[index].value,1);
            }
            return false;
        }
    </script>
  </head>

  <body>
    <form method="post" action="back.php" onsubmit="store()" >
      firstname<input type="text" name="firstname">
      lastname<input type="text" name="lastname">
      emailid<input type="text" name="emailid">
      <input type="submit" >
    </form>
    <script>
        (function load(){
            var inputs, index;

            inputs = document.getElementsByTagName('input');
            for (index = 0; index < inputs.length - 1; ++index) {
                inputs[index].value = getCookie(inputs[index].name);
            }
            return false;
        })();
    </script>
  </body>
</html>

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忘了有多久

2021-01-25 05:25

<html>
  <body>

    <form method="post" action="back.php" autocomplete="on" >
      <input type="text" autocomplete="on" >
      <input type="submit" >
    </form>

  </body>
</html>

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