wp-cache-config.php file getting Corrupted

Hi @samisummerstssp

There are a lot of similar issues, but I can’t reproduce it. I’m guessing that’s trouble with these lines in function wp_cache_replace_line:

        $lines = file($my_file);
        foreach( (array)$lines as $line ) {

Problem could be when file returns false. I’ll try to replace this block with:

       $lines = file($my_file);
        if ( empty( $lines ) || !is_array( $lines ) ) {
                return false;
        }
        foreach( (array)$lines as $line ) {

I don’t see anything else for now. Please try this code and I’ll create issue on github if we find out more details. It’s possible to we add code for logging result of function file in debug.log if you want.

Regards,
Sasa

Sorry, I forgot to write it.
It’s wp-cache.php in /wp-content/plugins/wp-super-cache

If you want, you can set DEBUG mode (with logging into file) – https://codex.ww.wp.xz.cn/WP_DEBUG:

define('WP_DEBUG', true);
define('WP_DEBUG_DISPLAY', false);
define('WP_DEBUG_LOG', true);

I’ll try to write additional PHP snippet which will log changes for wp-cache-config.php. Maybe we can find root of cause on this way.

I experienced corruption twice since the update. Site is stable then all of a sudden wp-cache-config.php becomes corrupt and breaks the entire site. In my case the corruption is the first few characters are replaced “<?php /*” are replaced with garbage characters.

There is no active changes to site configuration when this occurs.

I’m experiencing the exact same issue on one of my domains as well. I have the plugin disabled until a fix can be found.

@stodorovic

Your fix should be included in the plugin.

I added it a week ago and the problem did not happen again… until I updated the plug in to the version 1.5.7, just 20 minutes later the file corruption happened again. I have put the fix in place, but it will break on every update until some one include it on the plugin code