phpbrew install 7.0 +apxs2+json+mysql+pgsql+pdo+ctype+hash+mbstring+filter+openssl+opcache
phpbrew ext install gd -- --with-jpeg-dir --with-freetype-dir
phpbrew ext install https://github.com/php-memcached-dev/php-memcached php7 -- --disable-memcached-sasl
phpbrew extension install xdebug

Код проверки gd

<?php
    echo 'jpeg support - ' . (function_exists("imagecreatefromjpeg") ? 'ok' : 'error') . "\n";
    echo 'png support - ' . (function_exists("imagecreatefrompng") ? 'ok' : 'error') . "\n";
    echo 'gif support - ' . (function_exists("imagecreatefromgif") ? 'ok' : 'error') . "\n";
    echo 'ftt support - ' . (function_exists("imagefttext") ? 'ok' : 'error') . "\n";