diff --git a/php/5.6/Dockerfile b/php/5.6/Dockerfile
index abbee02..2e2ba22 100644
--- a/php/5.6/Dockerfile
+++ b/php/5.6/Dockerfile
@@ -23,6 +23,7 @@ RUN set -ex; \
 		libzip-dev \
 		mysql-client \
 		ssmtp \
+		tmux \
 		unzip \
 		vim \
 		zip
@@ -97,6 +98,7 @@ COPY bashrc /var/www/.bashrc
 COPY docker-entrypoint.sh /usr/local/bin/
 
 WORKDIR /var/www/htdocs
+RUN usermod -s /bin/bash www-data
 USER www-data
 
 ENTRYPOINT ["docker-entrypoint.sh"]
diff --git a/php/7.0/Dockerfile b/php/7.0/Dockerfile
index c3c0ae6..1d6e2f9 100644
--- a/php/7.0/Dockerfile
+++ b/php/7.0/Dockerfile
@@ -25,6 +25,7 @@ RUN set -ex; \
 		libssl-dev \
 		libicu-dev \
 		libwebp-dev \
+		tmux \
 		unzip \
 		vim \
 		zip
@@ -107,6 +108,7 @@ COPY docker-entrypoint.sh /usr/local/bin/
 COPY newrelic.ini /usr/local/etc/php/conf.d/newrelic.ini
 
 WORKDIR /var/www/htdocs
+RUN usermod -s /bin/bash www-data
 USER www-data
 
 ENTRYPOINT ["docker-entrypoint.sh"]
diff --git a/php/7.2/Dockerfile b/php/7.2/Dockerfile
index 7557c6b..aadb6d2 100644
--- a/php/7.2/Dockerfile
+++ b/php/7.2/Dockerfile
@@ -25,6 +25,7 @@ RUN set -ex; \
 		libssl-dev \
 		libicu-dev \
 		libwebp-dev \
+		tmux \
 		unzip \
 		vim \
 		zip
@@ -116,6 +117,7 @@ COPY docker-entrypoint.sh /usr/local/bin/
 COPY newrelic.ini /usr/local/etc/php/conf.d/newrelic.ini
 
 WORKDIR /var/www/htdocs
+RUN usermod -s /bin/bash www-data
 USER www-data
 
 ENTRYPOINT ["docker-entrypoint.sh"]
diff --git a/php/7.3/Dockerfile b/php/7.3/Dockerfile
index 7082cd5..87531ed 100644
--- a/php/7.3/Dockerfile
+++ b/php/7.3/Dockerfile
@@ -27,6 +27,7 @@ RUN set -ex; \
 		libgmp-dev \
 		libicu-dev \
 		libwebp-dev \
+		tmux \
 		unzip \
 		vim \
 		zip
@@ -120,6 +121,7 @@ COPY docker-entrypoint.sh /usr/local/bin/
 COPY newrelic.ini /usr/local/etc/php/conf.d/newrelic.ini
 
 WORKDIR /var/www/htdocs
+RUN usermod -s /bin/bash www-data
 USER www-data
 
 ENTRYPOINT ["docker-entrypoint.sh"]
diff --git a/php/7.4/Dockerfile b/php/7.4/Dockerfile
index b4ec0bd..0d749c9 100644
--- a/php/7.4/Dockerfile
+++ b/php/7.4/Dockerfile
@@ -26,6 +26,7 @@ RUN set -ex; \
 		libzip-dev \
 		libssl-dev \
 		libgmp-dev \
+		tmux \
 		unzip \
 		vim \
 		zip
@@ -120,6 +121,7 @@ COPY newrelic.ini /usr/local/etc/php/conf.d/newrelic.ini
 COPY newrelic.ini /data/newrelic.ini
 
 WORKDIR /var/www/htdocs
+RUN usermod -s /bin/bash www-data
 USER www-data
 
 ENTRYPOINT ["docker-entrypoint.sh"]
diff --git a/php/8.0/Dockerfile b/php/8.0/Dockerfile
index 9162b35..986c940 100644
--- a/php/8.0/Dockerfile
+++ b/php/8.0/Dockerfile
@@ -26,6 +26,7 @@ RUN set -ex; \
 		libzip-dev \
 		libssl-dev \
 		libgmp-dev \
+		tmux \
 		unzip \
 		vim \
 		zip
@@ -120,6 +121,7 @@ COPY newrelic.ini /usr/local/etc/php/conf.d/newrelic.ini
 COPY newrelic.ini /data/newrelic.ini
 
 WORKDIR /var/www/htdocs
+RUN usermod -s /bin/bash www-data
 USER www-data
 
 ENTRYPOINT ["docker-entrypoint.sh"]
diff --git a/php/8.1/Dockerfile b/php/8.1/Dockerfile
index a03e393..c866518 100644
--- a/php/8.1/Dockerfile
+++ b/php/8.1/Dockerfile
@@ -26,6 +26,7 @@ RUN set -ex; \
 		libzip-dev \
 		libssl-dev \
 		libgmp-dev \
+		tmux \
 		unzip \
 		vim \
 		zip
@@ -120,6 +121,7 @@ COPY newrelic.ini /usr/local/etc/php/conf.d/newrelic.ini
 COPY newrelic.ini /data/newrelic.ini
 
 WORKDIR /var/www/htdocs
+RUN usermod -s /bin/bash www-data
 USER www-data
 
 ENTRYPOINT ["docker-entrypoint.sh"]
diff --git a/php/8.2/Dockerfile b/php/8.2/Dockerfile
index 5afe440..cd851c4 100644
--- a/php/8.2/Dockerfile
+++ b/php/8.2/Dockerfile
@@ -26,6 +26,7 @@ RUN set -ex; \
 		libzip-dev \
 		libssl-dev \
 		libgmp-dev \
+		tmux \
 		unzip \
 		vim \
 		zip
@@ -120,6 +121,7 @@ COPY newrelic.ini /usr/local/etc/php/conf.d/newrelic.ini
 COPY newrelic.ini /data/newrelic.ini
 
 WORKDIR /var/www/htdocs
+RUN usermod -s /bin/bash www-data
 USER www-data
 
 ENTRYPOINT ["docker-entrypoint.sh"]
diff --git a/php/8.3/Dockerfile b/php/8.3/Dockerfile
index 12cceb2..183a6db 100644
--- a/php/8.3/Dockerfile
+++ b/php/8.3/Dockerfile
@@ -26,6 +26,7 @@ RUN set -ex; \
 		libzip-dev \
 		libssl-dev \
 		libgmp-dev \
+		tmux \
 		unzip \
 		vim \
 		zip
@@ -120,6 +121,7 @@ COPY newrelic.ini /usr/local/etc/php/conf.d/newrelic.ini
 COPY newrelic.ini /data/newrelic.ini
 
 WORKDIR /var/www/htdocs
+RUN usermod -s /bin/bash www-data
 USER www-data
 
 ENTRYPOINT ["docker-entrypoint.sh"]