Add g++ and php7-iconv

php-7.0/Dockerfile

@@ -67,10 +67,10 @@ RUN mkdir -p /root/.ssh && \
     echo "StrictHostKeyChecking no" >> /root/.ssh/config && \
     \
     apk update && \
-    apk add --no-cache curl openssl openssh ca-certificates wget make patch \
+    apk add --no-cache curl openssl openssh ca-certificates wget make patch g++ \
         bash fish python nodejs git unzip \
         php7 php7-phar php7-json php7-dom php7-gd php7-mbstring php7-openssl \
-        php7-pdo php7-curl php7-xml php7-zip php7-session php7-ctype && \
+        php7-pdo php7-curl php7-xml php7-zip php7-session php7-ctype php7-iconv && \
     \
     sed -i -e 's/memory_limit = 128M/memory_limit = -1/g' /etc/php7/php.ini && \
     \

php-7.1/Dockerfile

@@ -62,10 +62,10 @@ RUN mkdir -p /root/.ssh && \
     echo "StrictHostKeyChecking no" >> /root/.ssh/config && \
     \
     apk update && \
-    apk add --no-cache curl openssl openssh ca-certificates wget make patch \
+    apk add --no-cache curl openssl openssh ca-certificates wget make patch g++ \
         bash fish python nodejs git unzip \
         php7 php7-phar php7-json php7-dom php7-gd php7-mbstring php7-openssl \
-        php7-pdo php7-curl php7-xml php7-zip php7-session php7-ctype \
+        php7-pdo php7-curl php7-xml php7-zip php7-session php7-ctype php7-iconv \
         php7-tokenizer php7-simplexml php7-xmlwriter && \
     \
     sed -i -e 's/memory_limit = 128M/memory_limit = -1/g' /etc/php7/php.ini && \

php-7.2/Dockerfile

@@ -62,10 +62,10 @@ RUN mkdir -p /root/.ssh && \
     echo "StrictHostKeyChecking no" >> /root/.ssh/config && \
     \
     apk update && \
-    apk add --no-cache curl openssl openssh ca-certificates wget make patch \
+    apk add --no-cache curl openssl openssh ca-certificates wget make patch g++ \
         bash fish python nodejs npm git unzip \
         php7 php7-phar php7-json php7-dom php7-gd php7-mbstring php7-openssl \
-        php7-pdo php7-curl php7-xml php7-zip php7-session php7-ctype \
+        php7-pdo php7-curl php7-xml php7-zip php7-session php7-ctype php7-iconv \
         php7-tokenizer php7-simplexml php7-xmlwriter && \
     \
     sed -i -e 's/memory_limit = 128M/memory_limit = -1/g' /etc/php7/php.ini && \