A compiler for PHP
C++ PHP C Shell Makefile M4 Other
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Latest commit 026f16e Jul 6, 2017 @pbiggar committed on GitHub Fix typo



phc is an open source compiler for PHP with support for plugins. In addition, it can be used to pretty-print or obfuscate PHP code, as a framework for developing applications that process PHP scripts, or to convert PHP into XML and back, enabling processing of PHP scripts using XML tools.

Note: phc is unmaintained. It does compile some programs, and has an advanced optimization framework. However, these are not for production use (notably they lack support for objects!). It has an excellent program transformation framework though, which unfortunately was last updated for PHP 5.2, and does not support newer features. PRs will likely still be read, and if they pass the CircleCI build, I may merge them.

See http://phpcompiler.org for more details. Sadly, we allowed phpcompiler.org's registration to lapse. See the docs or the website source for the info that used to be there.

Building from source

After checking out via git, run

$ touch src/generated/* Makefile.in configure Makefile libltdl/aclocal.m4 libltdl/Makefile.in libltdl/configure libltdl/Makefile
$ ./configure
$ make
$ make install

For more detail, see (the manual)(doc/manual).


There's a little bit of work to get it building on OSX:

$ brew install homebrew/versions/boost155 xerces-c boehmgc
$ LDFLAGS="-L/usr/local/opt/boost155/lib -L/usr/local/Cellar/bdw-gc/7.6.0/lib" CPPFLAGS="-I/usr/local/opt/boost155/include -I/usr/local/Cellar/bdw-gc/7.6.0/include" ./configure --disable-static --disable-gc


The tests are held in test/framework/, but tests should be run from this directory. test/support_files/ are files used by the tests, for example for regression. test/subjects/ are the files used to test phc. Most are designed to test some feature or tickle some bug. test/subjects/labels controls what tests are run on which subjects. test/logs/ contains logs of failed tests. test/dependencies are used to avoid running a test if we know it wont work because a previous test failed. test/working contains the working directory for each test run.

To run tests:

$ make test # aka make check


$ make installcheck


$ make long-test


$ php test/framework/driver.php

The latter allows command line options, and limiting the tests with regular expressions. Run driver.php with the -h flag for details.

In order to run tests on your own php files, add the files to test/subjects/3rdparty/, and list them in test/subjects/3rdparty/labels. In order to generate the support files, for example if you'd like the regression tests to succeed rather than be skipped, run

$ make generate-test-files

By default, 3rdparty tests are treated as 'long', so need to be run with

$ make long-test

Its also straight-forward to test PHP's phpt test files:

  • run the test suite on PHP (in PHP's directory: $ TEST_PHP_EXECUTABLE=./sapi/cli/php --keep=php). This creates .php files from the .phpt files
  • link the PHP phpt directory from test/subjects/3rdparty.
  • update test/subjects/3rdparty/labels
  • Run the tests using the .php files.
  • This doesnt provide the EXPECT functionality etc, but we dont really need that in the majority of cases.