Starting from version 6.0.0 it's possible to specify configuration options.

This allows to connect lazily to the server without explicitly invoking`connect`command.

This allows to connect lazily to the server without explicitly invoking`connect`/`pconnect`.

]);

*host*: string. can be a host,or the path to a unix domain socket.

*port*: int (default is6379, should be -1for unix domain socket)

*host*: string, the hostname/FQDN/IP addressor the path to a unix domain socket; since v5.0.0 it is possible to specify schema

*port*: int, actual port (e.g.`6379`) or`-1` (or`0`)for unix domain socket; setting to <`0` with non-UDS will assume default of`6379`

*connectTimeout*: float, value in seconds (default is 0 meaning unlimited)

*retryInterval*: int, value in milliseconds (optional)

*readTimeout*: float, value in seconds (default is 0 meaning unlimited)

*host*: string. can be a host,or the path to a unix domain socket. Starting from version 5.0.0 it is possible to specify schema

*port*: int, optional

*host*: string,*host*: string, the hostname/FQDN/IP addressor the path to a unix domain socket; since v5.0.0 it is possible to specify schema

*port*: int,actual port (e.g.`6379`) or`-1` (or`0`) for unix domain socket; setting to <`0` with non-UDS will assume default of`6379`,optional

*timeout*: float, value in seconds (optional, default is 0 meaning it will use default_socket_timeout)

*reserved*: should be '' if retry_interval is specified

*retry_interval*: int, value in milliseconds (optional)

*retry_interval*: int, value in milliseconds,optional

*read_timeout*: float, value in seconds (optional, default is 0 meaning it will use default_socket_timeout)

*others*: array, with PhpRedis >= 5.3.0, it allows setting_auth_ and[_stream_](https://www.php.net/manual/en/context.ssl.php) configuration.

Also more than one persistent connection can be made identified by either host + port + timeout

or host + persistent_id or unix socket + timeout.

Starting from version 4.2.1, it became possible to use connection pooling by setting INI variable`redis.pconnect.pooling_enabled` to 1.

Since v4.2.1, it became possible to use connection pooling by setting INI variable`redis.pconnect.pooling_enabled` to 1.

This feature is not available in threaded versions.`pconnect` and`popen` then working like their non

persistent equivalents.

*host*: string. can be a host,or the path to a unix domain socket. Starting from version 5.0.0 it is possible to specify schema

*port*: int, optional

*host*: string,*host*: string, the hostname/FQDN/IP addressor the path to a unix domain socket; since v5.0.0 it is possible to specify schema

*port*: int,actual port (e.g.`6379`) or`-1` (or`0`) for unix domain socket; setting to <`0` with non-UDS will assume default of`6379`,optional

*timeout*: float, value in seconds (optional, default is 0 meaning it will use default_socket_timeout)

*persistent_id*: string. identity for the requested persistent connection

*retry_interval*: int, value in milliseconds (optional)

*[exists](#exists) - Determine if a key exists

*[expire, pexpire](#expire-pexpire) - Set a key's time to live in seconds

*[expireAt, pexpireAt](#expireat-pexpireat) - Set the expiration for a key as a UNIX timestamp

*[keys](#keys) - Find all keys matching the given pattern

*[keys](#keys-1) - Find all keys matching the given pattern

*[scan](#scan) - Scan for keys in the keyspace (Redis >= 2.8.0)

*[migrate](#migrate) - Atomically transfer a key from a Redis instance to another one

*[move](#move) - Move a key to another database

*key*

*String* or*Bool*: If keydidn't exist,`FALSE` is returned. Otherwise, the value related to this key is returned.

*String* or*Bool*: If keydoesn't exist,`FALSE` is returned. Otherwise, the value related to this key is returned.

*`PERSIST` - remove the expiration from the key

*String* or*Bool*: If keydidn't exist,`FALSE` is returned. Otherwise, the value related to this key is returned.

*String* or*Bool*: If keydoesn't exist,`FALSE` is returned. Otherwise, the value related to this key is returned.

*Key*

*Value*

*Timeout or Options Array* (optional). If you pass an integer, phpredis will redirect to SETEX, and will try to use Redis >= 2.6.12 extended options if you pass an array with valid values

*Timeout or Options Array* (optional). If you pass an integer, phpredis will redirect to SETEX, and will try to use Redis >= 2.6.12 extended options if you pass an array with valid values

*Bool*`TRUE` if the command is successful.

_**Description**_: Set the string value in argument as value of the key, with a time to live. PSETEX uses a TTL in milliseconds.

*Key*

*TTL*

*Value*

*Key*

*TTL*

*Value*

*Bool*`TRUE` if the command is successful.

*Bool*`TRUE` if the command is successful,`FALSE` in case of failure.

_**Description**_: Set the string value in argument as value of the key if the key doesn't already exist in the database.

*Bool*`TRUE`in case of success,`FALSE` in case of failure.

*Bool*`TRUE`if the command is successful,`FALSE` in case of failure.

*Note*: If you are connecting to Redis server >= 4.0.0 you can remove a key with the`unlink` method in the exact same way you would use`del`. The Redis[unlink](https://redis.io/commands/unlink) command is non-blocking and will perform the actual deletion asynchronously.

*Long* Number of keys deleted.

*Long* Number of keys deleted (`0` if none existed to start with),`FALSE` in case of unexpected failure (i.e. connection, etc.)

*key*

*long*: The numberof keys tested thatdo exist.

*Long* Numberof keys tested thatexist (`0` if none do),`FALSE` in case of failure.

$redis->exists('foo', 'bar', 'baz'); /* 3 */

**Note**: This function took a single argument and returned TRUE or FALSEin phpredis versions < 4.0.0.

**Note**: This function took a single argument and returned TRUE or FALSE<v4.0.0.