Dockerfile for latest WordPress and Latest PHP

I am using Docker to run WordPress. Official image doesn’t contain imagick as well as tidy. These two are necessary extensions for cache plugins and image manipulations including resize and compression to work.

Follwing Dockerfile will have latest PHP as well as WordPress. As long as you are at PHP7.4.X as well as wordpress 5.4.X we are good to go.


FROM wordpress:5.4.2-php7.4-apache
# Better WordPress Health-Check
RUN apt-get update && apt-get install -y libmagickwand-dev --no-install-recommends && rm -rf /var/lib/apt/lists/*
#RUN printf "\n" | pecl install imagick
RUN docker-php-ext-enable imagick
RUN docker-php-ext-install bcmath exif
# W3Cache tweaks
RUN apt-get update && apt-get install -y tidy libtidy-dev --no-install-recommends && rm -rf /var/lib/apt/lists/*
RUN a2enmod headers ext_filter 

RUN set -eux; \
	a2enmod rewrite expires; \
	a2enmod remoteip; \
	{ \
		echo 'RemoteIPHeader X-Forwarded-For'; \
# these IP ranges are reserved for "private" use and should thus *usually* be safe inside Docker
		echo 'RemoteIPTrustedProxy'; \
	} > /etc/apache2/conf-available/remoteip.conf; \
	a2enconf remoteip; \
# (replace all instances of "%h" with "%a" in LogFormat)
	find /etc/apache2 -type f -name '*.conf' -exec sed -ri 's/([[:space:]]*LogFormat[[:space:]]+"[^"]*)%h([^"]*")/\1%a\2/g' '{}' +

RUN docker-php-ext-install tidy

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How to install Imagick in PHP Docker?

The PHP docker image is build from the source and hence the usual apt-get install php-imagick doesn’t work at all. This might be frustrating for you as most of the solutions have a version attached to it. However, I found a way to always have it updated. Here is how –

Dockerfile for Imagick

This is how docker file should look like:

FROM php:7.3-apache
RUN apt-get update && apt-get install -y libmagickwand-dev --no-install-recommends && rm -rf /var/lib/apt/lists/*
RUN printf "\n" | pecl install imagick
RUN docker-php-ext-enable imagick

Build Output


configuration option "php_ini" is not set to php.ini location
You should add "" to php.ini
Removing intermediate container 1c032fba6d45
 ---> 517795f672ac
Step 4/4 : RUN docker-php-ext-enable imagick
 ---> Running in 976ecd4a9627
Removing intermediate container 976ecd4a9627
 ---> 4b978dd49756
Successfully built 4b978dd49756

Git Repositor and Docker

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How to write good “If” statements?

Writing a good code is an art and it can be useful in so trivial things that most developers often ignore. Usually, amateurs are programmed to write an ‘if’ statement which is always accompanied by an ‘else’ . However, it is important to realize that code quality can significantly be improved if else is omitted. For instance, consider this code.

function getUser($id){
  if($id < 1){
   $user = [];
   //some big codes
  return $user

Here some big codes can be so big that it will return statement will be lost in it. Better would be:

function getUser($id){
  if($id < 1){
   return [];
  //some big codes
  return $user

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