Memcached 未显示在 phpinfo() 中

Question

我已经为 php 安装了 libmemcached 和 memcached pecl 扩展，但由于某种原因它没有正确安装？我在 /usr/lib64/php/ 中有 memcached.so 并具有正确的权限，在 /usr/local/lib/ 中有 libmemcache.so

一切似乎都正确构建，没有错误，我重新启动了 apache？

我也安装了守护进程。

我之前不知何故轻松地为 php 轻松安装了 Memcache 类，但我意识到我想要的是 Memcached（注意 d）类。如果需要更多信息，请告诉我！

编辑：我以前在 php 中使用过 memcache（没有 d），所以我知道我正在操作正确的 php.ini！

编辑 2：确实存在 apache 错误！

Unable to load dynamic library '/usr/lib64/php/modules/memcached.so' - /usr/lib64/php/modules/memcached.so: undefined symbol: php_json_encode in Unknown on line 0

Answer 1

我不知道这是否是同样的问题，但经过几个小时的努力，我设法使用下面的命令在 CentOS 上正确安装了 PHP 和 Memcached：

yum --enablerepo=remi-php73 install php-memcached

测试安装：

php -i | grep -i memcache

应该显示类似：

/etc/php.d/50-memcached.ini
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 => Off => Off
memcached.default_connect_timeout => 0 => 0
memcached.default_consistent_hash => Off => Off
memcached.serializer => igbinary => igbinary
memcached.sess_binary_protocol => On => On
memcached.sess_connect_timeout => 0 => 0
memcached.sess_consistent_hash => On => On
memcached.sess_consistent_hash_type => ketama => ketama
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 => 150 => 150
memcached.sess_lock_wait_min => 150 => 150
memcached.sess_locking => On => On
memcached.sess_number_of_replicas => 0 => 0
memcached.sess_persistent => Off => Off
memcached.sess_prefix => memc.sess.key. => memc.sess.key.
memcached.sess_randomize_replica_read => Off => Off
memcached.sess_remove_failed_servers => Off => Off
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

Answer 2

添加

extension=memcache.so

在 php.ini 中然后重启 apache

Answer 3

几天前我遇到了类似的错误。安装新版本（2.0）的 memcached 对我有帮助。

yum -y install gcc-c++
wget http://launchpad.net/libmemcached/1.0/0.50/+download/libmemcached-0.50.tar.gz
tar xzf libmemcached-0.50.tar.gz 
cd libmemcached-0.50
./configure 
make 
make install
wget http://pecl.php.net/get/memcached-2.0.0b2.tgz
pecl install memcached-2.0.0b2.tgz
echo 'extension=memcached.so' > /etc/php.d/memcached.ini
service php-fpm restart
cd ..
rm -r libmemcached-0.50*
rm -r memcached-

Answer 4

我已经在 centos5 中使用 yum 安装程序而不是 pecl install memcached 解决了这个问题

这种方式 --> yum install php-pecl-memcached

然后，服务 httpd 重新启动，它会显示在 phpinfo() 中