目前的状况

当进入页面时，会出现以下警告提醒。

using touch command with binary protocol is not recommended with libmemcached versions below 1.0.18, please use ascii protocol or upgrade libmemcached

环境。

CentOS Linux 发布版 7.4.1708
nginx/1.10.2
PHP 7.1.10 (fpm-fcgi)
php-fpm

想做的事情

php -i | grep memcache

当检查libmemcached的版本时，发现是1.0.16，所以想将版本升级到1.0.18。

积分

在过去的环境中，我们通过yum安装php-pecl-memcached，但得到的版本只有1.0.16。

yum -y install memcached

yum -y install --enablerepo=remi,remi-php71 php php-devel php-mbstring php-pdo php-gd php-mcrypt php-fpm php-mysqlnd php-opcache php-apcu php-xml php-tokenizer php-openssl php-pecl-memcached

应对

停止使用php-pecl-memcached

# memcached

yum -y install memcached

wget https://launchpad.net/libmemcached/1.0/1.0.18/+download/libmemcached-1.0.18.tar.gz
tar xvf libmemcached-1.0.18.tar.gz
cd libmemcached-1.0.18
./configure
make
make install
cd ../

wget http://pecl.php.net/get/memcached-3.0.3.tgz
tar xvf memcached-3.0.3.tgz
yum -y install autoconf
yum -y install zlib-devel
cd memcached-3.0.3
phpize
./configure --with-libmemcached-dir=/usr/local/ --disable-memcached-sasl
make
make install
cd ../

systemctl enable memcached

在/etc/php.ini中加入以下内容

extension=memcached.so

結果（）

# php -i | grep memcache

memcached
memcached support => enabled
libmemcached version => 1.0.18
memcached.compression_factor => 1.3 => 1.3
memcached.compression_threshold => 2000 => 2000
memcached.compression_type => fastlz => fastlz
memcached.default_binary_protocol => 0 => 0
memcached.default_connect_timeout => 0 => 0
memcached.default_consistent_hash => 0 => 0
memcached.serializer => php => php
memcached.sess_binary_protocol => 1 => 1
memcached.sess_connect_timeout => 0 => 0
memcached.sess_consistent_hash => 1 => 1
memcached.sess_lock_expire => 0 => 0
memcached.sess_lock_max_wait => not set => not set
memcached.sess_lock_retries => 5 => 5
memcached.sess_lock_wait => not set => not set
memcached.sess_lock_wait_max => 2000 => 2000
memcached.sess_lock_wait_min => 1000 => 1000
memcached.sess_locking => 1 => 1
memcached.sess_number_of_replicas => 0 => 0
memcached.sess_persistent => 0 => 0
memcached.sess_prefix => memc.sess. => memc.sess.
memcached.sess_randomize_replica_read => 0 => 0
memcached.sess_remove_failed_servers => 0 => 0
memcached.sess_sasl_password => no value => no value
memcached.sess_sasl_username => no value => no value
memcached.sess_server_failure_limit => 0 => 0
memcached.store_retry_count => 2 => 2
Registered save handlers => files user memcached
session.save_handler => memcached => memcached

警告不再出现了！