Extensions written for PHP 3 will not work with PHP 4, neither as binaries
nor at the source level. It is not difficult to port extensions to PHP 4
if you have access to the original source. A detailed description of the
actual porting process is not part of this text.
Php migration4.extensions Function syntax tag
migration4.extensions php code on this is provided for your study purpose, it will guide you to know how create and design a website using php. use it to practice and train your self online
Php migration4.extensions syntax tutorial
php tutorial guide and code design are for easy learning and programming. The code practice section provided at the top is for practising of this syntax. Use the code section up to practice your php programming online. Learning php is very easy, all you need is to use the examples on this site and practice them to perfect your skills.