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The WordPress has some problem on the webspace, but the one I installed on my own computer is just perfect.
For example, I open the index page and click “comment”, then I enter the content and click “submit”, it will show as follows:
It Didn’t Work: Unknown column ‘wp’ in ‘where clause’
Here ‘wp’ is the subfolder where the wordpress is installed. If I changed to ‘wordpress’, then the problem will be like this:
It Didn’t Work: Unknown column ‘wordpress’ in ‘where clause’
(to be continued)
and also the Dashboard Layout is broken. Some links have the same problem as above.
It shows that the problem is related with the apache rewrite function.
I invalid the line below on httpd.conf on my own computer with #:
#LoadModule rewrite_module modules/mod_rewrite.so
reboot the Apache. Everything works just fine. I thought that the problem is related to .htaccess file, but ......
From http://wordpress.org, we can see the documents. hope it helps.
this link http://codex.wordpress.org/Using_Permalinks is about .htaccess, rewrite_module, Premalinks.
If I used the name started with wp-, even I deleted all its content of the file, when I opened it in IE, it always shows:
It Didn’t Work: Unknown column ‘wordpress’ in ‘where clause’
What's wrong with it? It's really confusing.
I changed the file name of wp-comments-post.php to 0comments-posts.php, now, if I try to open this file on a web browser like IE, it won't show the problem as above.
I changed wp-comments-post to 0comments-post in the files: comments.php, comments-popup.php in the subfolder: wp-includes\theme-compat\ and comment-template.php in the subfolder: wp-includes\
Now, I can add comments on the index page of wordpress.
There must be something wrong with the rewrite rules of the web hosting server:
Those files and subfolders don't exit, but it doesn't always show the webpage cannot be found:
When I try to find this file: http://www.coolder.com/wp-try/load-styles.php
It shows: It Didn't Work: Unknown column 'wp' in 'where clause'
Other examples are as follows:
http://www.coolder.com/wd-try/load-styles.php
It Didn't Work: Unknown column 'wd' in 'where clause'
http://www.coolder.com/wd-try/loadstyles.php
The webpage cannot be found
http://www.coolder.com/wdtry/load-styles.php
The webpage cannot be found
http://coolder.com/try/wp-comments-post.php
It Didn't Work: Unknown column 'try' in 'where clause'
http://coolder.com/try/wp-comments.php
The webpage cannot be found
http://coolder.com/try/wp-co-o.php
It Didn't Work: Unknown column 'try' in 'where clause'
I think that the rewriting rules has some problems on the web hosting server. There can be more than two “-” in the path and the filename.
I changed the subfolder prefix from “wp-” to “wp_”. I also changed the names of the files which include more than one “-”. I just keep one “-” and change the rest “-” to “_”. And I changed those filenames in the file too according to the new name.
It works now, just still has some little bugs, because some filenames still has more than one “-”, such as some iagmes files.
Maybe this change will bring other problems, but I don’t know now.
补充： 问题出在我写的.htaccess上，不应该这么改的，太麻烦了
，详细请参看这里： WordPress:It Didn’t Work: Unknown column ‘**’ in ‘where clause’ 