The suggestion is to use SplFileObject::DROP_NEW_LINE or SplFileObject::SKIP_EMPTY to handle this.

However, I find I often need to use both to achieve the desired result of ignoring blank or empty lines. To achieve this, you need to use a bitmask in your setflags argument.

A value of ’7′ corresponds to both SplFileObject::DROP_NEW_LINE AND SplFileObject::SKIP_EMPTY, e.g.

$file = new SplFileObject($path);
$file->setFlags(7);

setFlags(15) would correspond to a bitmask for DROP_NEWLINE, SKIP_EMPTY, READ_CSV.


#SR does global replacement in html files, replacing its first parameter by
#its second parameter--use with extreme caution!

find ./ -name '*.html' -print | while read i
do
sed "s/$1/$2/g" $i >$i.bak && mv $i.bak $i
done


To use this, simply execute the command via:

./SR term_to_find term_to_replace_with

As a slight tweak, and what I find more useful, is to add a third input param, for example to switch on the file names you want to replace:

#SR does global replacement in files specified in STDIN as third parameter, replacing its first parameter by
#its second parameter--use with extreme caution!

find ./ -name "*.$3" -print | while read i
do
sed "s/$1/$2/g" $i >$i.bak && mv $i.bak $i
done

For example, to replace image1.jpg with image2.jpg, in all css files, run this:

./SR image1.jpg image2.jpg css

To do so, first upload the image you want to use, and a thumbnail of it to the wp-content/themes/NEW_THEME_NAME/images/headers directory.

Then, in wp-content/themes/NEW_THEME_NAME/functions.php edit the register_default_headers function, to replace ‘sunset’ below with your new image details:

'sunset' => array(
'url' => '%s/images/headers/sunset.jpg',
'thumbnail_url' => '%s/images/headers/sunset-thumbnail.jpg',
/* translators: header image description */
'description' => __( 'Sunset', 'copied_twenty_theme' )
),


Then go to Appearance -> Theme -> Headers in your Admin panel, and you should be able to select the new image as header.

I trawled various forums, and got the usual “do a full re-install” etc, or disable and re-enable all plugins blah blah blah.

The solution is here – its elegant, simple and a one-liner: add the below line to your wp-config.php file.

define(‘CONCATENATE_SCRIPTS’, false );

For me, it happened on a Dell machine, and it is incredibly annoying.

So, if you have enabled dual-booting, with say a Windows and Linux partition, all seems fine booting into your Ubuntu install, until that is, you boot up Windows, and then try to subsequently boot up your machine to either Windows or Linux.

What happens is a message:

module name not found, press any key

Of course pressing the “any key” does nothing, and you are unable to boot up any OS from the HDD.

There are a series of excellent links on this, all worth a look, as your situation may have slight differences to some mentioned scenarios within the links below:

• http://ubuntuforums.org/showthread.php?t=1501591
• http://ubuntuforums.org/showthread.php?t=1560177
• http://sourceforge.net/apps/mediawiki/bootinfoscript/index.php?title=Boot_Problems:Windows_Writes_To_MBR
• http://ubuntuforums.org/showthread.php?t=1343851&page=2

What is happening is that certain Dell software, e.g. Datasafe, modify the MBR, and your GRUB gets corrupted/needs to be re-installed.

Quick Solution:

As described in links above, for a quick fix to allow you boot in again, load up your Live CD, e.g. ubuntu install CD you can download easily (using a Knoppix boot for example from the CD drive), and run from the CD drive. Then, open a terminal shell, and do the following:

sudo mount /dev/sda3 /mnt
sudo grub-install –recheck –root-directory=/mnt /dev/sda

In the above, sda3 represents whatever partition your Linux install is on, so will likely be different for you – that should be the only thing you need to change above.

Once done, you can boot up again as per usual, until of course you log into Windows again!

So long-term solution is to identify all Dell proprietary software (most listed in links above and http://download.cnet.com/ccleaner/ and http://forum.notebookreview.com/dell-xps-studio-xps/406492-how-do-i-remove-dells-datasafe.html), fully delete them using CC Cleaner for example, re-boot using the Live CD GRUB trick one final time, and then you should be good!

To get it back, just do as described here, but watching out for the typos in the commands as printed there, namely:

gconftool –recursive-unset /apps/panel

rm -rf ~/.gconf/apps/panel

pkill gnome-panel

Viola!!

warning: mail_queue_enter: create file maildrop/636773.1040: Permission denied

It measn postfix is not running, and you have problems!

Running
postfix check

will likely result in:

postsuper: fatal: scan_dir_push: open directory defer: Permission denied

What this means is that the permissions for postfix dirs are all screwed, most likely after a server restart (that’s when it normally happens for me at least).

You can confirm this by doing:

postfix start

and observing:

“postfix” postsuper: fatal: scan_dir_push:
open directory defer: Permission denied

To solve, run:

postfix set-permissions

You may still have to make minor permission changes, to change owner from root to postfix for the /var/lib/postfix files.

#1006 – Can’t create database

The problem is that /var/lib/mysql is probably owned by root, and ALSO in the root group. It should not be.

ls -ld /var/lib/mysql probably looks like this:

drwxrwxr-x 4 root root 4096 2010-11-01 23:45 /var/lib/mysql

It should be:

drwxrwxr-x 4 root mysql 4096 2010-11-01 23:45 /var/lib/mysql

So, run

chgrp -R mysql /var/lib/mysql

and you should be able to create databases now.

Good idea also to use a symlink to obfuscate the ‘phpmyadmin’ url too.

Eg. within the docroot of a site I wish to install phpmyadmin on, I would do:

cd /var/www/site

ln -s SECRET_PATH_TO_DB /usr/share/phpmyadmin/

Your phpmyadmin install is then available on site.com/SECRET_PATH_TO_DB

For the htaccess password protection, this is a very handy generator tool. The username and password you choose for the .htpasswd protection should be saved to /usr/share/phpmyadmin/.htpasswd (swap /usr/share for whatever install path you have).