Display records from database

Question

I'm trying to display some information stored in MySQL comments table to an input but I'm having issues with that. Input named enterComment inserts data to my DB and I want it to redirect back to showComment input.

HTML:

form action='takedata.php' method='POST'>
            <input type='text' id='enterComment' name='enterComment' width='400px' placeholder='Write a comment...'>
            <input type='submit' id='combuton' name='comButon' value='Comment!'>
            <input type='text' id='showComment' name='showComment'>
        </form>

PHP:

<?php include "mysql.php"; ?>

<?php
    if (isset($_POST['comButon'])){
        $enterComment = strip_tags($_POST['enterComment']);
            if($enterComment){
                $addComment = mysql_query("INSERT INTO comments(comment) VALUES('$enterComment')");
                if($addComment==1)
                    //INSERT INTO showComment input;
            }
    }
?>

Answer 1

try this, and use mysqli instead of mysql

include "dbconnect.php"; 
if (isset($_POST['comButon'])){
        $enterComment = strip_tags($_POST['enterComment']);
        if($enterComment){
            $addComment = mysqli_query($conn, "INSERT INTO comments(comment) VALUES('$enterComment')");
            if($addComment) {
                $sql = "select comment from comments order by id desc limit 1";
                $result = mysqli_query($conn, $sql);
                while($row = $result->fetch_assoc()) { ?>
                    <input type="text" value="<?php echo $row['comment']; ?>">
                <?php }
            }

        } 
}

your form

<form action='' method='POST'>
            <input type='text' id='enterComment' name='enterComment' width='400px' placeholder='Write a comment...'>
            <input type='submit' id='combuton' name='comButon' value='Comment!'>
            <?php if(!isset($_POST['comButon'])) { ?>
                 <input type="text" value="">
            <?php } ?>
        </form>