Quercus: Java and PHP integration

Adding PHP functions with a Java module.

tutorial hello.php
The PHP Hello, World The Java module definition web.xml configuration Adding the module
This article shows how to use Quercus, Resin's PHP implementation, to create a module in java callable from a PHP page.

For purposes of this article, I assume that you are working with Resin 3.0.17 and that the directory housing httpd.exe is /var/www/webapps/ROOT. I will call this directory $webApp.

<web-app xmlns="http://caucho.com/ns/resin"> <servlet servlet-name="resin-php" servlet-class="com.caucho.quercus.servlet.QuercusServlet"/> <servlet-mapping url-pattern="*.php" servlet-name="resin-php"/> </web-app>
package example; import com.caucho.quercus.module.AbstractQuercusModule; public class HelloModule extends AbstractQuercusModule { /* ** Notice the careful use of the naming ** convention hello_test. This is done ** in order to prevent name collisions ** among different libraries. */ public String hello_test(String name) { return "Hello, " + name; } }
example.HelloModule
<?php echo hello_test("World") ?> In your favorite browser, type: http://localhost:8080/hello.php You should see: Hello, World

It is fairly straight forward to create your own modules callable from within a Quercus/PHP page. The above tutorial takes through the steps to create the simple hello world application (without needing to "jar-up" your files).

If you want to change your module in any way, all you have to do is resave the ".java" file in the classes\example directory, and Resin will recompile it for you.

You do not need to restart your web app or Resin. It's just that simple.