php4j

php4j is PHP embedded in Java. It allows you to call PHP code from Java in the same process. See PhpTest.java for example usage.

Alternatives to this are shelling out to PHP (forking) or calling PHP over the network.

Requirements

• PHP compiled with --enable-embed (>= 7.0.0)
• JDK (>= 8, earlier versions probably work, but untested)

On Debian/Ubuntu this is openjdk-*-jdk and libphp7.*-embed.

Building

$ make

javac, javah, and php-config are expected to be in PATH.

Testing

$ make test

This will compile and run PhpTest.java which executes test.php and prints the result.

Limitations

• Not thread-safe
• Zvals must be freed manually (via dispose method)

TODO

• Fix leak in getHash
• Support for calling Java from PHP
• Support for exceptions, errors, SAPI options, SAPI callbacks
• Control of request init/shutdown