add phpstorm and php interpreter dockerfiles

images/phpstorm/Dockerfile.centos

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+FROM codercom/enterprise-multieditor:centos
+
+# Run everything as root
+USER root
+
+# Install php interpreter and CGI
+RUN yum update -y && yum install -y \
+    php \
+    php-common \
+    php-fpm \
+    php-opcache \
+    php-cli \
+    php-pear \
+    php-devel  
+
+# Install phpstorm.
+RUN mkdir -p /opt/ps
+RUN curl -L "https://download.jetbrains.com/product?code=PS&latest&distribution=linux" | tar -C /opt/ps --strip-components 1 -xzvf -
+
+# Add a binary to the PATH that points to the intellij startup script.
+RUN ln -s /opt/ps/bin/phpstorm.sh /usr/bin/phpstorm
+
+# Set back to coder user
+USER coder

images/phpstorm/Dockerfile.ubuntu

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+FROM codercom/enterprise-multieditor:ubuntu
+
+# Run everything as root
+USER root
+
+# Install php interpreter and CGI
+
+RUN apt-get update && \
+    DEBIAN_FRONTEND="noninteractive" apt-get install --yes \
+      php \
+      php7.4-cgi \
+      php-xdebug \
+      php-dev    
+
+# Install phpstorm.
+RUN mkdir -p /opt/ps
+RUN curl -L "https://download.jetbrains.com/product?code=PS&latest&distribution=linux" | tar -C /opt/ps --strip-components 1 -xzvf -
+
+# Add a binary to the PATH that points to the intellij startup script.
+RUN ln -s /opt/ps/bin/phpstorm.sh /usr/bin/phpstorm
+
+# Set back to coder user
+USER coder

images/phpstorm/README.md

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+# Enterprise PhpStorm
+
+[![Docker Pulls](https://img.shields.io/docker/pulls/codercom/enterprise-phpstorm?label=codercom%2Fenterprise-phpstorm)](https://hub.docker.com/r/codercom/enterprise-phpstorm)
+
+## Description
+
+Wraps [enterprise-multieditor](../multieditor/README.md) with PhpStorm
+installation.
+
+## How To Use It
+
+This image is ready for direct use within Coder Enterprise. Environments created
+from this image will be able to launch PhpStorm with the PHP interpreter included.