Unwanted new line returned after AJAX request

Question

I'm using an ajax request to send comments to DB. Succesful response is marked by ``` 1. OK ``` The problem actually is that the response from the php script is ``` 1. 2. OK ``` So I debugged the script and noted that the newline character si being added when the script executes the following line: ``` require_once($ABS_APPS."/quotes/classQuote.php"); ``` After some searches i read that it could be a BOM (Byte Order Mark) problem. So I just downloaded and opened the `classQuote.php` file with an hex editor and noticed that there's no BOM... can someone help me? P.S. All files in my project are encoted in UTF-8, and I'm currently usint NetBeans which doesn't add BOM to files. This is the incriminated script: ``` // Send new comment to DB case "send": $notification = new Notification(); if($comment->insert($_POST["username"], $_POST["comment"], $_POST["app"], $_POST["entryId"])){ switch ($_POST["app"]) { case "quotes": require_once($ABS_APPS."/quotes/classQuote.php"); $quote = new Quote…

Accepted Answer

- Make sure there is nothing, preceeding the opening `<?php` in your classQuote.php

- Make sure there are no trailing characters / lines after the closing `?>`

- Check to see if a `?>` tag exists somewhere in the lines of code (follow flow from your __construct and where you invoke stuff)

Infact, it could prove helpful to leave out the closing tag. Another possibility is this:

```
  // capture output
            ob_start(); 
            require_once($ABS_APPS."/quotes/classQuote.php");
            $quote = new Quote();
            $quoteData = $quote->get($_POST["entryId"]);
            // If user comments his own entry we don't have to send the notification
            if($quoteData["UserAuthor"] != $_SESSION["User"]){
                $notification->newComment($_POST["username"], $quoteData["UserAuthor"], $_POST["entryId"], $_POST["app"]);
  // trim whitespace
            echo trim(ob_get_clean()); 
            }
```

Unwanted new line returned after AJAX request

Solution

Problem