How To Reset Ownership And Permissions of Wp-Content Folder, In Order to Fix HTTP Error When Uploading Images to WordPress Media Library

Question

I've noticed several articles about how to deal with the HTTP error when uploading images to the WP Media library:

How to Fix HTTP Error When Uploading Images?

However, I've already tried adding this code to the functions.php file:

add_filter( 'wp_image_editors', 'change_graphic_lib' );

function change_graphic_lib($array) {
    return array( 'WP_Image_Editor_GD', 'WP_Image_Editor_Imagick' );
}

(As was suggested by the most upvoted answer in that article)

And I've also tried some of the things that were suggested in the accepted answer of that article, such as adding define('WP_MEMORY_LIMIT', '256MB'); to the wp-config.php file, and adding the following codes to the .htaccess file:

1. AddType x-mapp-php5 .php

2. <IfModule mod_security.c> SecFilterEngine Off SecFilterScanPOST Off </IfModule>

3. # Exclude the file upload and WP CRON scripts from authentication <FilesMatch "(async-upload\.php|wp-cron\.php|xmlrpc\.php)$"> Satisfy Any Order allow,deny Allow from all Deny from none </FilesMatch>

But still the HTTP error remains.

I admit - I haven't yet tried the suggestions in this article (25 Image Media Uploader Problems – WordPress), but before I do, I also heard that I should try resetting the ownership and permissions of the wp-content folder. And I would like to try that first.

So, what does it mean to reset the ownership and permissions of this folder? Would I simply need to follow the instructions in this article (How to Fix File and Folder Permissions Error in WordPress)?

The article suggests changing the folder permissions to 755 (my folders already have this permission)

And the file permissions to 644.

But I'm nervous about doing this. I don't want to make any changes that can't be undone and I'm not even sure if this is what's meant by resetting ownership and permissions of the wp-content folder.

Please advise as to whether or not this is the best way of "resetting the ownership and permissions of the wp-content folder", and if you think it will help to eliminate the HTTP error when uploading images to the WordPress media library.

Thanks.

EDIT: Screenshots of HTTP error:

EDIT 2: I have noticed that images with smaller file sizes are able to upload without error. I.e. an image of 578 KB will upload but an image of 610 KB or above will not.

EDIT 3: Setting the permissions of the folders in the root directory to 755 and the permissions of the files in the root folder to 644 as is suggested in the article How to Fix File and Folder Permissions Error in WordPress did not work. The HTTP error when uploading files remains:

I also tried calling my hosting company, and they upgraded PHP to version 7.1 for this website, but the error still remains.

Answer 1

try increasing WordPress Memory Limit to 256M The most common cause of this error is lack of memory available for WordPress to use. To fix this, you need to increase the amount of memory PHP can use on your server.

You can do this by adding the following code to your wp-config.php file.

define( 'WP_MEMORY_LIMIT', '256M' );

This code increases the WordPress memory limit to 256MB, which would be enough to fix any memory limit issues.

If you still face the same issue then try this code. paste this code in the functions.php file of your active theme.

function wp_image_uploading( $editors ) {
    $gd_editor = 'WP_Image_Editor_GD';
    $editors = array_diff( $editors, array( $gd_editor ) );
    array_unshift( $editors, $gd_editor );
    return $editors;
}
add_filter( 'wp_image_editors', 'wp_image_uploading' );

Also, Try adding this code in your .htaccess file.

SetEnv MAGICK_THREAD_LIMIT 1

Verify your file and folder permissions.