Is PHP better then Java on web app?

Both languages are pretty good. Depends what is scope of web project

Both in Java as well as in PHP, there are frameworks, designed to create Web applications

  PHP is one of the most mature, ubiquitous server-side scripts on the web. JAVA is a general-purpose

Depends what is the scope of the application.

Depends on project requuirement

Both would be good, lets see what is the requirments.

yes.php better than java 

lang Is the future

PHP is a scripting language, easy to learn, and implement, while Java is fast and powerful language as compared to PHP. Both have a different purpose to use. 

Depends on the requirements

PHP is a functional and scripting language used for client rendering and Java is Object Oriented Programing used for backend server/desktop application programing and both are powerful in their own space.

PHP is easy and simple

java more complex but more performance

It is depend on our requirement if we want to fully secure website then java is better else php is better .