Good online pratice

PHP-Preg_match
http://www.functions-online.com/preg_match.html

Javascript
http://www.w3schools.com/jsref/tryit.asp?filename=tryjsref_replace3

Css
http://www.w3schools.com/css/tryit.asp?filename=trycss_default

PHP 5.3 : date.timezone

Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Asia/Kuala_Lumpur' for 'MYT/8.0/no DST' instead in /var/www/html/fridae/lib/Cake/Cache/Cache.php on line 513 Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Asia/Kuala_Lumpur' for 'MYT/8.0/no DST' 

To solve this in php 5.3, open the php.ini
$ nano /etc/php.ini

 Search [Date], and change the ;date.timezone = to
date.timezone ='Asia/Kuala_Lumpur'



 Restart apache
$ /etc/init.d/httpd restart

Refer:http://chrisjean.com/2011/06/24/php-5-3-and-system-timezone-settings/

Upgrade php 5.1 to 5.3 in CentOS

Remove PHP package 

$ sudo yum remove php php-cli php-common php-devel php-gd php-mbstring \
 php-mysql php-mcrypt php-pdo php-pear php-pgsql php-xml php-xmlr

Install PHP 5.3

$ sudo yum install php53 php53-cli php53-common php53-devel php53-gd \
 php53-mbstring php53-mysql php53-pdo php53-pgsql php53-xml php53-xmlrpc 

Restart apache

$ sudo /etc/init.d/httpd restart

Refer:http://chrisjean.com/2011/06/24/upgrade-php-5-1-or-5-2-to-5-3-on-centos/