… in one DSN (nicolas-grekas)

This PR was merged into the 4.2-dev branch.

Discussion
----------

[Cache] support configuring multiple Memcached servers in one DSN

| Q             | A
| ------------- | ---
| Branch?       | master
| Bug fix?      | no
| New feature?  | yes
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #27855
| License       | MIT
| Doc PR        | symfony/symfony-docs#10402

Useful to reconfigure dynamically an array of memcached servers (eg removing a dead one or adding a new one).
DSN format is e.g. `memcached://localhost?host[foo.bar]=3`.
To ease generating the DSN programmatically, it works also with `memcached:?host[localhost]&host[localhost:12345]&host[/some/memcached.sock:]=3`.

The key of the "host" parameter is a "host:port" pair, the value is the weight of the "host:port" pair.
Sockets need to be specified with the trailing `:` (as shown in the last example).

Commits
-------

8e0605ac18 [Cache] support configuring multiple Memcached servers in one DSN

… in one DSN (nicolas-grekas)

This PR was merged into the 4.2-dev branch.

Discussion
----------

[Cache] support configuring multiple Memcached servers in one DSN

| Q             | A
| ------------- | ---
| Branch?       | master
| Bug fix?      | no
| New feature?  | yes
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #27855
| License       | MIT
| Doc PR        | symfony/symfony-docs#10402

Useful to reconfigure dynamically an array of memcached servers (eg removing a dead one or adding a new one).
DSN format is e.g. `memcached://localhost?host[foo.bar]=3`.
To ease generating the DSN programmatically, it works also with `memcached:?host[localhost]&host[localhost:12345]&host[/some/memcached.sock:]=3`.

The key of the "host" parameter is a "host:port" pair, the value is the weight of the "host:port" pair.
Sockets need to be specified with the trailing `:` (as shown in the last example).

Commits
-------

8e0605a [Cache] support configuring multiple Memcached servers in one DSN