查看已安装扩展

php -m

查看扩展信息

php -ri memcached

# 返回信息
memcached

memcached support => enabled
Version => 3.1.5
libmemcached version => 1.0.18
SASL support => yes
Session support => yes
igbinary support => yes
json support => yes
msgpack support => yes

Directive => Local Value => Master Value
memcached.sess_locking => On => On
memcached.sess_lock_wait_min => 150 => 150
memcached.sess_lock_wait_max => 150 => 150
memcached.sess_lock_retries => 5 => 5
memcached.sess_lock_expire => 0 => 0
memcached.sess_binary_protocol => On => On
memcached.sess_consistent_hash => On => On
memcached.sess_consistent_hash_type => ketama => ketama
memcached.sess_number_of_replicas => 0 => 0
memcached.sess_randomize_replica_read => Off => Off
memcached.sess_remove_failed_servers => Off => Off
memcached.sess_server_failure_limit => 0 => 0
memcached.sess_connect_timeout => 0 => 0
memcached.sess_sasl_username => no value => no value
memcached.sess_sasl_password => no value => no value
memcached.sess_persistent => Off => Off
memcached.sess_prefix => memc.sess.key. => memc.sess.key.
memcached.sess_lock_wait => not set => not set
memcached.sess_lock_max_wait => not set => not set
memcached.compression_type => fastlz => fastlz
memcached.compression_factor => 1.3 => 1.3
memcached.compression_threshold => 2000 => 2000
memcached.serializer => php => php
memcached.store_retry_count => 2 => 2
memcached.default_consistent_hash => Off => Off
memcached.default_binary_protocol => Off => Off
memcached.default_connect_timeout => 0 => 0