This project is to:
1. Create a webpage to let user check whether a webpage is up or not.
2. Deploy '1' on a web host

Notes:
The deployment I did on OpenShift last weekend was straightforward: git client on my PC, commit and 
push to the webhost's folder(which is the git server folder as well), then deployment is done.
What I wanted was a bit more advanced: when I commit and push to github(not OpenShift), the hook I set 
on github will trigger deploy.php located on webhost(such as OpenShift) already. That php will then pull 
from Github to that webpage to complete an "auto deploy". Only this way, a "deply script" is used and 
the webhost doesn't have to be a git server. Unfortunately, free webhost doesn't support mechanism for 
this kind of setup(needs to install git and clone to the server side first). But I am able to run that 
deploy.php on my local webhost and pull from github automatically. It means, for a deployment that is 
using web hosting supporting the setup, my deployment script will work fine! I will demo it.

Reference: (that really used, no just searched, which is way more)
1. http://httpd.apache.org/download.cgi (download apache for local host)
2. http://www.thesitewizard.com/php/install-php-5-apache-windows.shtml 
(compatibility Apache Version & PHP version)
3. http://windows.php.net/downloads/releases/ (download right PHP for local host)
4. https://help.github.com/articles/set-up-git (set up github)
5. http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html (return code of web status)
6. http://css-tricks.com/snippets/php/check-if-website-is-available/ (sample code)
7. http://code.google.com/p/xampp-php-extensions/downloads/detail?name=php_curl.dll&can=2&q= 
(php_curl.dll download)
8. https://help.github.com/articles/generating-ssh-keys (ssh connection for github)
9. http://pierrchen.blogspot.com/2011/09/working-same-github-repository-from-two.html 
(2 computers, 1 repository for github)
10.http://stackoverflow.com/questions/18676856/display-php-post-results-after-a-form-submit-then-reload-same-blank-form-when-p 
(display result using same index.php file)
11.http://w3schools.invisionzone.com/index.php?showtopic=25145 
(inspired to display on the same search page)
12.https://www.openshift.com/ (openshift registration)
13.https://www.openshift.com/kb/kb-e1006-sync-new-git-repo-with-your-own-existing-git-repo 
(as subject)
14.http://webdeploy.comli.com/ (another free hosting)
15.https://www.openshift.com/kb/kb-e1015-how-to-resolve-permission-denied-errors-permission-denied-publickeygssapi-keyexgssapi-wi 
(for openshift, had to add ssh keys to git prog directory)
16.https://openshift.redhat.com/app/console/application/test/get_started?wizard=true 
(test application)
17.http://webstatuscheck-webdeploy.rhcloud.com/ (final deployed application)
18.http://brandonsummers.name/blog/2012/02/10/using-bitbucket-for-automated-deployments/ 
(deploy php triggered by git host such as bitbucket and github)
19.https://github.com/mboynes/github-deploy (another reference to deploy)
20.http://stackoverflow.com/questions/651038/how-do-you-clone-a-git-repository-into-a-specific-folder
(how to clone git repository to a folder with different name then repository name in git)
21.https://github.com/web-deploy/webstatus_check (source code)