The PHP Interpreter
PHP is a popular general-purpose scripting language that is especially suited to web development. Fast, flexible and pragmatic, PHP powers everything from your blog to the most popular websites in the world. PHP is distributed under the PHP License v3.01.
The PHP manual is available at php.net/docs.
Prebuilt packages and binaries
Prebuilt packages and binaries can be used to get up and running fast with PHP.
For Windows, the PHP binaries can be obtained from windows.php.net.
After extracting the archive the
*.exe files are ready
For other systems, see the installation chapter.
Building PHP source code
For Windows, see Build your own PHP on Windows.
For a minimal PHP build from Git, you will need autoconf, bison, and re2c. For a default build, you will additionally need libxml2 and libsqlite3. On Ubuntu, you can install these using:
sudo apt install -y pkg-config build-essential autoconf bison re2c \ libxml2-dev libsqlite3-dev
Configure your build.
--enable-debug is recommended
for development, see
./configure --help for a full
list of options.
# For development ./configure --enable-debug # For production ./configure
Build PHP. To speed up the build, specify the maximum number of
The number of jobs should usually match the number of available
cores, which can be determined using
Testing PHP source code
PHP ships with an extensive test suite, the command
test is used after successful compilation of the sources to
run this test suite.
It is possible to run tests using multiple cores by setting
make TEST_PHP_ARGS=-j4 test
make test with a maximum of 4 concurrent
jobs: Generally the maximum number of jobs should not exceed the
number of cores available.
The qa.php.net site provides more detailed info about testing and quality assurance.
Installing PHP built from source
After a successful build (and test), PHP may be installed with:
Depending on your permissions and prefix,
install may need super user permissions.
Extensions provide additional functionality on top of PHP. PHP consists of many essential bundled extensions. Additional extensions can be found in the PHP Extension Community Library - PECL.
The PHP source code is located in the Git repository at git.php.net. Contributions are most welcome by forking the GitHub mirror repository and sending a pull request.
Discussions are done on GitHub, but depending on the topic can also be relayed to the official PHP developer mailing list firstname.lastname@example.org.
New features require an RFC and must be accepted by the developers. See Request for comments - RFC and Voting on PHP features for more information on the process.
Bug fixes do not require an RFC but require a
bug tracker ticket. Open a ticket at bugs.php.net and reference the bug id using
Fix #55371: get_magic_quotes_gpc() throws deprecation warning After removing magic quotes, the get_magic_quotes_gpc function caused a deprecated warning. get_magic_quotes_gpc can be used to detect the magic_quotes behavior and therefore should not raise a warning at any time. The patch removes this warning.
Pull requests are not merged directly on GitHub. All PRs will be pulled and pushed through git.php.net. See Git workflow for more details.
Guidelines for contributors
See further documents in the repository for more information on how to contribute:
For the list of people who've put work into PHP, please see the PHP credits page.