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This project forked from websupport-sk/pecl-memcache
License: Other
This is not an official repository. This repository contains modified pecl-memcache plugin ported to PHP7, which was originally developed for the need of hosting company in Slovakia (Websupport.sk). Feel free to use it and post patches. Original README: memcached module for PHP ------------------------ This module requires zlib library, used for on-the-fly data (de)compression. Also, you'll need memcached to use it =) The memcached website is here: http://www.danga.com/memcached/ You will probably need libevent to install memcached: You can download it here: http://www.monkey.org/~provos/libevent/ How to run tests: 1. sh tests/memcache.sh 2. TEST_PHP_EXECUTABLE=/usr/local/bin/php php -dextension=modules/memcache.so run-tests.php -d extension=modules/memcache.so New API in 3.0 ------------------------ Version 3 introduces a new class "MemcachePool" which implements the new API, the old class "Memcache" is still retained (but is deprecated) with the same interface for backwards compatibility. Please note that you need a new memcached version to use the CAS, default value to increment/decrement, append and prepend, and binary protocol features. New INI directives are available to allow control over protocol, redundancy and hash strategy selection. These are # The binary protocol results in less traffic and is more efficient # for the client and server to generate/parse memcache.protocol = {ascii, binary} # default ascii # When enabled the client sends requests to N servers in parallel, resulting in # a somewhat crude reduncancy or mirroring, suitable when used as a session # storage. # # If data integrity is of greater importance a real replicating memcached # backend such as "repcached" (http://sourceforge.net/projects/repcached/) is # recommended memcache.redundancy = <int> # default 1 memcache.session_redundancy = <int> # default 2 # Hash strategy and function selection. The consistent hashing strategy # is now the default as it allows servers to be added and removed from # the pool without resulting in all or most keys being re-mapped to # other server (ie. voiding the cache) memcache.hash_strategy = {standard, consistent} # default consistent memcache.hash_function = {crc32, fnv} # default crc32 # Compression is enabled by default, the threshold which control the minimum # string length which triggers compresssion can be changed as memcache.compress_threshold = <int> # default 20000 The directives are used by the MemcachePool constructor so you can instantiate several pools with different settings by using ini_set() creativly. For example ini_set('memcache.protocol', 'binary'); $binarypool = new MemcachePool(); $binarypool->addServer(...) ini_set('memcache.protocol', 'ascii'); ini_set('memcache.redundancy', '2'); $redundantpool = new MemcachePool(); $redundantpool->addServer(...) ini_set('memcache.redundancy', '1'); The new interface looks like class MemcachePool() { bool connect(string host, int tcp_port = 11211, int udp_port = 0, bool persistent = true, int weight = 1, int timeout = 1, int retry_interval = 15) bool addServer(string host, int tcp_port = 11211, int udp_port = 0, bool persistent = true, int weight = 1, int timeout = 1, int retry_interval = 15, bool status = true) bool setServerParams(string host, int tcp_port = 11211, int timeout = 1, int retry_interval = 15, bool status = true) /** * Supports fetching flags and CAS values */ mixed get(mixed key, mixed &flags = null, mixed &cas = null) /** * Supports multi-set, for example * $memcache->set(array('key1' => 'val1', 'key2' => 'val1'), null, 0, 60) */ bool add(mixed key, mixed var = null, int flag = 0, int exptime = 0) bool set(mixed key, mixed var = null, int flag = 0, int exptime = 0) bool replace(mixed key, mixed var = null, int flag = 0, int exptime = 0) /** * Compare-and-Swap, uses the CAS param from MemcachePool::get() */ bool cas(mixed key, mixed var = null, int flag = 0, int exptime = 0, int cas = 0) /** * Prepends/appends a value to an existing one */ bool append(mixed key, mixed var = null, int flag = 0, int exptime = 0) bool prepend(mixed key, mixed var = null, int flag = 0, int exptime = 0) /** * Supports multi-key operations, for example * $memcache->delete(array('key1', 'key2')) */ bool delete(mixed key, int exptime = 0) /** * Supports multi-key operations, for example * $memcache->increment(array('key1', 'key2'), 1, 0, 0) * * The new defval (default value) and exptime (expiration time) are used * if the key doesn't already exist. They must be supplied (even if 0) for * this to be enabled. * * Returns an integer with the new value if key is a string * Returns an array of integers if the key is an array */ mixed increment(mixed key, int value = 1, int defval = 0, int exptime = 0) mixed decrement(mixed key, int value = 1, int defval = 0, int exptime = 0) /** * Assigns a pool-specific failure callback which will be called when * a request fails. May be null in order to disable callbacks. The callback * receive arguments like * * function mycallback($host, $tcp_port, $udp_port, $error, $errnum) * * Where $host and $error are strings or null, the other params are integers. */ bool setFailureCallback(function callback) /** * Locates the server a given would be hashed to * * Returns a string "hostname:port" on success * Returns false on failure such as invalid key */ string findServer(string key) } Maintainers: Herman J. Radtke III hradtke at php dot net
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