如何使POST值永远与另一个值保持一致？

Question

I am making a website editor and I need to make a box where you can type and it will submit it to the page. Now I have done that but when I refresh that page, the value expires and disappears, I have tried making a SESSION value and it remained the same problem. Can anyone help?

<script type="text/javascript">
tinymce.init({
    selector: "textarea",
    plugins: [
        "advlist autolink lists link image charmap print preview anchor",
        "searchreplace visualblocks code fullscreen",
        "insertdatetime media table contextmenu   paste"
    ],
    toolbar: "insertfile undo redo | styleselect | bold italic | alignleft aligncenter alignright alignjustify | bullist numlist outdent indent | link image"
});
</script>

<form method="post" action="../">
    <textarea name="content" style="width:100%"></textarea>
    <br>
    <input class="btn btn-lg btn-primary btn-block" type="submit" value="Save" />
</form>

I want to submit it to the index, which it is and save that value forever.

Answer 1

First of all you have to initialize session if you want to keep track of your objects. Then you can save there anything:

<?php
  session_start ();
  if(isset($_POST)){
    $_SESSION['content'] = $_POST['content'];
  }
  echo $_SESSION['content'];
?>