Updating PHP on CentOS 6 - "Error: Package: php-pecl-ncurses"
The package php-pecl-ncurses requires the php api for the 5.3 version, so you may remove it from your system, before your install:
yum remove php-pecl-ncurses
You may also want to check if there are any other PECL packages installed and see if they should also be removed:
rpm -qa '*pecl*'
Then run the command install/update your PHP installation:
yum install php php-opcache php-gd php-curl php-mysqlnd