$clear_str = preg_replace("/[^A-Za-z0-9\s\s+]/",'',$string_need_to_be_cleared);

Where $clear_str is the result and $string_need_to_be_cleaned is dirty string.

Here is from: http://www.offensive-security.com/blog/backtrack/customising-backtrack-live-cd-the-easy-way/

I’ve automated the customising process of the livecd to a convenient script which can be run on the BT4 Pre final (and future) release. This script sets up a build environment for you and drops you off in a modifiable chroot. You update, upgrade, add, remove packages, and then exit the shell. The script goes on to build a modified iso for you, including the updates and additions you introduced.

The script is very basic, with many elements hard coded (for example, the iso name expected is bt4.iso), but is easily modifiable.  In this video demonstration we install the broadcom wireless drivers, to support the Broadcom Corporation BCM4322 802.11a/b/g/n Wireless LAN Controller (rev 01) card in Macbooks. In addition, we update our backtrack tools to the most recent versions.

The script is available here: http://www.offensive-security.com/bt4-customise.sh

pinktun.info
kbil.info
5pal.info

bzr.mobi
unblockyoutube.name
moneydating.info
bypass-blockedsites.info
privacyworld.info
proxymen.info
unblockb.info
pvoxy.com
prontosite.info

primeproxy23.info
mb23.info
killmyip.com
mtum.info
hottogo.info
filter-killer.info
myjobtool.info
blockedsiteaccess.com
popopop.info

couc.info
unblockfeed.info
hiddensecret.info
takeoften.info
openunblocker.com
musthide.info
railgod.com
jaxbug.info
flupe.info

bypassbot.info
mb26.info
shadowkick.info
surfer-pro.info
neatfill.com
simplesurf.info
zerotrace.info
hooglez.info
freepvoxy.info

yunblocker.info
feedsgo.com
dailyonline.info
lmbu.com
hidmee.info
jumpfind.info
glypewebproxy.cn
bepper.info
surfwild.info

prowy.info
canget.info
mozillatunnel.info
ezface.info
admitopen.info
ojnet.info
unblockyoutubefree.info
gur1.info
8hop.info

momosurf.info
proxe78.info
ipassfilters.info
surfwebproxy.cn
cd28.info
proxyentry.info
unblockbebo.name
visiblenot.com
vinceline.com

proxy2010.info
unblockproxyservice.cn
enterthru.info
surehide.info
passfind.info
proxy4.info
serversproxy.info
amazingblue.info
uck.in

un-blocking.info
ourcloaker.info
jiggalicious.info
wantfun18.info
fightfast.info
anonymouswebfilter.info
accessthatpage.com
sp-5.info
unblockmonster.com

eepsurf.info
cunblock.info
kopj.info
unblockedorkut.com
bium.info
dailythrough.info
bestcan.info
pengopango.info
gfilter.info

browsertunnel.com
betterintoday.info
thekick.info
catchhere.info
secretmyspaceproxy.com
dnba.info
turg.info
myspace-oxy.com
surfnets.info

proxymeets.info
a3te.com
wlyo.info
finacialproxy.com
droprules.com
youraccesspass.info
myspacebroswer.info
hiproxy.tk
proxitup.info

mysupreme.info
superaccess.info
verycloaked.info
apple-gen.com
browserhelper.info
goinsites.com
docome.info
olproxy.info
redtun.info

farbehind.info
cantbeatme.info
huntthere.info
httpsurf.com
proxyporn.info
ridblocks.com
myspaceproxyserver.cn
jtunnel.com
buzzblinks.info

carrysite.info
filteradmin.com
freeallow.info
failingmaths.com
yourstudyhelp.info
yellowpr0xy.info
freezethefirewall.com
iwillbefree.info
dnusers.com

bestmove.info
proxyr.info
silentdollars.name
hotlook4less.com
dashwill.info
secretbrowsing.net
tunnelurl.info
hotsurflive.com
seekfun.info

cloakednow.com
actyou.info
webproxy.com.au
simplebrowse.info
paypercoverage.com
ubfilter.info
surfwork.be
evantbyrne.info
hide66.info

hidemyprivacy.com
ipkill.org
mb21.info
singleandblonde.com
chanceproxy.info
cloakour.info
safehazard.com
apill.info
myfast.info

deepcan.info
zekty.info
netevader.net
hitonline.info
vidboo.com

1. In your flock/firefox browser, find Tools -> Add ons -> Extensions
2. Locate the StumbleUpon
3. Click remove/uninstall
4. Restart flock / firefox

Share on Tumblr.

However, simplepie is only able to create the cache and display whether there is an update or not, not remove them. So, we need to do stuff like delete all files in directory of simplepie cache.

1. Upload this script to your website parent directory and name it clear.php so it can be accessible easily. i.e. yourdomain.com/clear.php, change the path with your proper simplepie cache location.

<?php
define('PATH', '/your/path/to/simplepie/cache/');

function destroy($dir) {
 $mydir = opendir($dir);
 while(false !== ($file = readdir($mydir))) {
 if($file != "." && $file != "..") {
 chmod($dir.$file, 0777);
 if(is_dir($dir.$file)) {
 chdir('.');
 echo "deleting " . $dir.$file;
 destroy($dir.$file.'/');
 rmdir($dir.$file) or DIE("couldn't delete $dir$file<br />");
 }
 else
 echo "deleting " . $dir.$file;
 unlink($dir.$file) or DIE("couldn't delete $dir$file<br />");
 }
 }
 closedir($mydir);
}
destroy(PATH);
echo 'all done.';
?>

1. Login to your cpanel, find Cron Jobs
2. Add new cron job with given interval, I choose twice a day.
3. Fill the command with “curl yourdomain.com/clear.php” (No quote) then change yourdomain.com with your website url.

That’s will solve your problem.

1. In Safari, go to the screen that gives you the option for ‘medium’ or ‘original image’ sizes. Click ‘Original Size’

2. Tap and hold your finger on the image. When you see a pop-up box, choose ‘Save Image’

3. Go to your iPhone’s Camera Roll, choose the photo, tap the Action icon, then tap ‘Use As Wallpaper’

window.location.replace("http://masbuchin.com");

Make sure to replace masbuchin.com with your own page.

1. cd ..

2. chgrp -R web public

3. find . -type f -exec chmod 664 {} \;

4. find . -type d -exec chmod 775 {} \;

- test it.

It worked well for me, comment are welcome.