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Comment Upload on forum - Replace ":Blobby-tired" with an img tag but getting an error when passing to


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So I wanted to create stickers on my forum where people type in say ":Blobby-Tired" and then instead of the comment showing ":Blobby-Tired" it shows an html image tag displaying a picture of Blobby in the comment box

So I created the following page CommentUpload.php

However my sql fails to insert it despite the fact when I "echo $new" it shows the image on the page correctly

And it can't be my sql insert code as if I change $new variable for "$BodyText" int he SQL query it it inserts   ":Blobby-Tired" OK?


include 'dbconnect.php';

if(isset($_POST["submit"]) && !empty($_POST["CommentText"])){
$id = intval($_SESSION['id']);
echo  $_SESSION['id'] . '<p> </p>'   ; 
$BodyText = $conn -> real_escape_string($_POST['CommentText']) ; 
$User = $_SESSION['username'];

//Replace flairs with <img> tags 
/*not working currently) */
$new = str_replace(":Blobby-Tired","<img src='flairs/Blobby-Tired.jpg'> </img>","'$BodyText'");
echo "$new";

	 $sql = "INSERT INTO Posts (User, CommentText, IdOfThread)
     VALUES ('$User','$new','$id')";
     if (mysqli_query($conn, $sql)) {
        echo "New record has been added successfully !";
     } else {
        echo "Error: " . $sql . ":-" . mysqli_error($conn);





Edited by Fishcakes
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a. any substitution or processing of output, should occur when you output the data, not when you store the data. 

b. if you have a need to store data containing sql special characters, quotes in this case, you would apply any escape_string() function or even better yet, simply use a prepared query, right before executing the query, not prior to content being added to the data that contains quotes.

Edited by mac_gyver
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