96 lines
3.4 KiB
Markdown
96 lines
3.4 KiB
Markdown
# What is PHP?
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PHP is a server-side scripting language designed for web development, but which can also be used as a general-purpose programming language. PHP can be added to straight HTML or it can be used with a variety of templating engines and web frameworks. PHP code is usually processed by an interpreter, which is either implemented as a native module on the web-server or as a common gateway interface (CGI).
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> [wikipedia.org/wiki/PHP](http://en.wikipedia.org/wiki/PHP)
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%%LOGO%%
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# How to use this image.
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## With Command Line
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For PHP projects run through the command line interface (CLI), you can do the following.
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### Create a `Dockerfile` in your PHP project
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```dockerfile
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FROM php:5.6-cli
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COPY . /usr/src/myapp
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WORKDIR /usr/src/myapp
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CMD [ "php", "./your-script.php" ]
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```
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Then, run the commands to build and run the Docker image:
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```console
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$ docker build -t my-php-app .
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$ docker run -it --rm --name my-running-app my-php-app
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```
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### Run a single PHP script
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For many simple, single file projects, you may find it inconvenient to write a complete `Dockerfile`. In such cases, you can run a PHP script by using the PHP Docker image directly:
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```console
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$ docker run -it --rm --name my-running-script -v "$PWD":/usr/src/myapp -w /usr/src/myapp php:5.6-cli php your-script.php
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```
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## With Apache
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More commonly, you will probably want to run PHP in conjunction with Apache httpd. Conveniently, there's a version of the PHP container that's packaged with the Apache web server.
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### Create a `Dockerfile` in your PHP project
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```dockerfile
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FROM php:5.6-apache
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COPY src/ /var/www/html/
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```
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Where `src/` is the directory containing all your php code. Then, run the commands to build and run the Docker image:
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```console
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$ docker build -t my-php-app .
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$ docker run -it --rm --name my-running-app my-php-app
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```
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We recommend that you add a custom `php.ini` configuration. `COPY` it into `/usr/local/etc/php` by adding one more line to the Dockerfile above and running the same commands to build and run:
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```dockerfile
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FROM php:5.6-apache
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COPY config/php.ini /usr/local/etc/php/
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COPY src/ /var/www/html/
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```
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Where `src/` is the directory containing all your php code and `config/` contains your `php.ini` file.
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### How to install more PHP extensions
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We provide two convenient scripts named `docker-php-ext-configure` and `docker-php-ext-install`, you can use them to easily install PHP extension.
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For example, if you want to have a PHP-FPM image with `iconv`, `mcrypt` and `gd` extensions, you can inherit the base image that you like, and write your own `Dockerfile` like this:
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```dockerfile
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FROM php:5.6-fpm
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# Install modules
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RUN apt-get update && apt-get install -y \
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libfreetype6-dev \
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libjpeg62-turbo-dev \
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libmcrypt-dev \
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libpng12-dev \
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&& docker-php-ext-install iconv mcrypt \
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&& docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/ \
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&& docker-php-ext-install gd
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CMD ["php-fpm"]
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```
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Remember, you must install dependencies for your extensions manually. If an extension needs custom `configure` arguments, you can use the `docker-php-ext-configure` script like this example.
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### Without a `Dockerfile`
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If you don't want to include a `Dockerfile` in your project, it is sufficient to do the following:
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```console
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$ docker run -p 80:80 -it --rm --name my-apache-php-app -v "$PWD":/var/www/html php:5.6-apache
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```
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