My plugin generates x characters of unexpected output

Asked Jul 08 '13 at 14:53

Active Jul 08 '13 at 14:53

Viewed 65 times

I am building a simple plugin in wordpress which actually works quite well but when I activate my plugin it get this message

The plugin generated 23 characters of unexpected output during activation. If you notice “headers already sent” messages, problems with syndication feeds or other issues, try deactivating or removing this plugin.

Now of course I want to find out what causes the problem.

This is the top part of my plugins' sourcecode:

<?php
/*
Plugin Name: Staticbox
Plugin URI: XXXXX
Description: Staticbox - Eine einfache Content-Box zum einbinden.
Version: 0.3
Author: XXXXX
Author URI: XXXXX
Update Server: XXXXX
Min WP Version: 3.5.2
Max WP Version: 3.5.3
*/
register_activation_hook( __FILE__, 'staticbox_activate' );
register_deactivation_hook( __FILE__, 'staticbox_deactivate' );
global $wpdb;
$plugins_url = plugins_url('', __FILE__);
$table_name = $wpdb->base_prefix."staticbox";

/*** WIRD BEIM AKTIVIEREN AUSGEFÜHRT ***/
function staticbox_activate() {
    global $wpdb;
    $sql = "CREATE TABLE IF NOT EXISTS `".$wpdb->base_prefix."staticbox` (`content` text NOT NULL)";
    $wpdb->query($sql);
}

/*** WIRD BEIM DEAKTIVIEREN AUSGEFÜHRT ***/
function staticbox_deactivate() {
    global $wpdb;
    $sql = "DROP TABLE `".$wpdb->base_prefix."staticbox`";
    $wpdb->query($sql);
}

Where does it generate output? I don't see it.

asked Jul 08 '13 at 14:53

Manticore

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1

it is probably before the in the include. Make sure – Orangepill Jul 08 '13 at 14:54
The very first thing in that file is – Manticore Jul 08 '13 at 14:57
@Orangepill I edited my question so you can have a look – Manticore Jul 08 '13 at 14:59
apache error log may give you clues as to where the output is being generated. – Orangepill Jul 08 '13 at 15:03
@Orangepill you were right. there were spaces in a file I included at the bottom. now there is only one space left but my apache error log doesn't show anything. do i have to set it to debug level? – Manticore Jul 08 '13 at 15:09
What is the new behavior? – Orangepill Jul 08 '13 at 15:13
@Orangepill well, when i activate my plugin it says "The plugin generated 1 characters of unexpected output" – Manticore Jul 08 '13 at 15:16
1

Yeah I would crank up the error_reporting all the way. – Orangepill Jul 08 '13 at 15:17
@Orangepill thanks mate, finally found the last space :) – Manticore Jul 08 '13 at 15:21
@Orangepill answer it and i'll mark it as correct – Manticore Sep 17 '13 at 08:29

My plugin generates x characters of unexpected output

0 Answers0