晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
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# 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](LICENSE).

[![Push](https://github.com/php/php-src/actions/workflows/push.yml/badge.svg)](https://github.com/php/php-src/actions/workflows/push.yml)
[![Build status](https://travis-ci.com/php/php-src.svg?branch=master)](https://travis-ci.com/github/php/php-src)
[![Fuzzing Status](https://oss-fuzz-build-logs.storage.googleapis.com/badges/php.svg)](https://bugs.chromium.org/p/oss-fuzz/issues/list?sort=-opened&can=1&q=proj:php)

## Documentation

The PHP manual is available at [php.net/docs](https://php.net/docs).

## Installation

### 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](https://windows.php.net). After extracting the archive the
`*.exe` files are ready to use.

For other systems, see the [installation chapter](https://php.net/install).

### Building PHP source code

*For Windows, see [Build your own PHP on Windows](https://wiki.php.net/internals/windows/stepbystepbuild_sdk_2).*

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

On Fedora, you can install these using:

    sudo dnf install re2c bison autoconf make libtool ccache libxml2-devel sqlite-devel

Generate configure:

    ./buildconf

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 jobs using `-j`:

    make -j4

The number of jobs should usually match the number of available cores, which
can be determined using `nproc`.

## Testing PHP source code

PHP ships with an extensive test suite, the command `make 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 `-jN` in
`TEST_PHP_ARGS`:

    make TEST_PHP_ARGS=-j4 test

Shall run `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](https://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:

    make install

Depending on your permissions and prefix, `make install` may need super user
permissions.

## PHP extensions

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](https://pecl.php.net).

## Contributing

The PHP source code is located in the Git repository at
[github.com/php/php-src](https://github.com/php/php-src). Contributions are most
welcome by forking the 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 internals@lists.php.net.

New features require an RFC and must be accepted by the developers. See
[Request for comments - RFC](https://wiki.php.net/rfc) and
[Voting on PHP features](https://wiki.php.net/rfc/voting) for more information
on the process.

Bug fixes don't require an RFC. If the bug has a GitHub issue, reference it in
the commit message using `GH-NNNNNN`. Use `#NNNNNN` for tickets in the old
[bugs.php.net](https://bugs.php.net) bug tracker.

    Fix GH-7815: php_uname doesn't recognise latest Windows versions
    Fix #55371: get_magic_quotes_gpc() throws deprecation warning

See [Git workflow](https://wiki.php.net/vcs/gitworkflow) for details on how pull
requests are merged.

### Guidelines for contributors

See further documents in the repository for more information on how to
contribute:

- [Contributing to PHP](/CONTRIBUTING.md)
- [PHP coding standards](/CODING_STANDARDS.md)
- [Mailing list rules](/docs/mailinglist-rules.md)
- [PHP release process](/docs/release-process.md)

## Credits

For the list of people who've put work into PHP, please see the
[PHP credits page](https://php.net/credits.php).

haha - 2025