• Php Serialize Array
• Node Js Php Serialize Multiple Myeloma
• Js Serialize Object

JavaScript tool to unserialize data taken from PHP. It can parse 'serialize()' output, or even serialized sessions data.

1. The value to be serialized. Serialize() handles all types, except the resource-type.You can even serialize() arrays that contain references to itself.
2. I am storing the PHP $_SESSION data in a database. Then from a Node.js server I want to take that data and unserialize it. I tried to use js-php-unserialize like this: con.query('SELECT user_id.
3. The serialize() method creates a URL encoded text string by serializing form values. You can select one or more form elements (like input and/or text area), or the form element itself. The serialized values can be used in the URL query string when making an AJAX request.
4. Now you will know how to remove duplicate values from a multi-dimensional array. Values from a multi-dimensional array in PHP. Bootstrap Node.js JavaScript.
5. I want to deserialize data from php serialize array in node js I found in many questions use JSON.stringify() to serialize and for deserialize use JSON.parse but unable to do the same and not find.

Relational to JSON with Node.js. We then use JSON.stringify to serialize the object into the JSON result we are after. But in Node.js this is a round trip.

Credits

• The PHP unserializer is taken from kvz's phpjs project.
• The session unserializer's idea is taken from dumpling, which is highly limited by its lack of a real unserializer, and has lot of crash cases.

Installation

Node.js

Install from npm :

The use it the usual way :

Browser

Download tarball from github and then unarchive this where you want, then you can simply include it in your page :

Compatibility issues

This library has been tested server-side only. For example it uses [].reduce, so it may not work on some browsers. Do not hesitate to make pull requests to fix it for you favorite browsers :)

Notes

• Note that array() will be converted to {} and not []. That can be discussed as array() in PHP has various significations. A choice had to be done, but it may change in the future (cf. next point).
• A less obvious conversion is array('a', 'b') which will be converted to {'0': 'a', '1': 'b'}. Quite annoying, and it will be fixed if necessary (this means I won't work on this issue unless you really need it, but I agree this is not normal behavior).

Usage

The module exposes two methods:

unserialize(string)

Unserialize output taken from PHP's serialize() method.

It currently does not suport objects.

unserializeSession(string)

Unserialize PHP serialized session. PHP uses a weird custom format to serialize session data, something like '$key1$serializedData1 $key2$serializedData2 …', this methods will parse this and unserialize chunks so you can have a simple anonymous objects.

This is a complete and feature rich Redis client for node.js. It supports allRedis commands and focuses on high performance.

Install with:

Usage Example

This will display:

Note that the API is entirely asynchronous. To get data back from the server,you'll need to use a callback. From v.2.6 on the API supports camelCase andsnake_case and all options / variables / events etc. can be used either way. Itis recommended to use camelCase as this is the default for the Node.jslandscape.

Promises

Native Promises

If you are using node v8 or higher, you can promisify node_redis with util.promisify as in:

now getAsync is a promisified version of client.get:

or using async await:

Bluebird Promises

You can also use node_redis with promises by promisifying node_redis withbluebird as in:

It'll add a Async to all node_redis functions (e.g. return client.getAsync().then())

Sending Commands

Each Redis command is exposed as a function on the client object.All functions take either an args Array plus optional callback Function ora variable number of individual arguments followed by an optional callback.Examples:

Care should be taken with user input if arrays are possible (via body-parser, query string or other method), as single arguments could be unintentionally interpreted as multiple args.

Note that in either form the callback is optional:

If the key is missing, reply will be null. Only if the Redis CommandReference states something else it will not be null.

For a list of Redis commands, see Redis Command Reference

Minimal parsing is done on the replies. Commands that return a integer returnJavaScript Numbers, arrays return JavaScript Array. HGETALL returns an Objectkeyed by the hash keys. All strings will either be returned as string or asbuffer depending on your setting. Please be aware that sending null, undefinedand Boolean values will result in the value coerced to a string!

This library is a 1 to 1 mapping to Redis commands.It is not a cache library so please refer to Redis commands page for full usagedetails.

Example setting key to auto expire using SET command

Connection and other Events

client will emit some events about the state of the connection to the Redis server.

'ready'

client will emit ready once a connection is established. Commands issuedbefore the ready event are queued, then replayed just before this event isemitted.

'connect'

client will emit connect as soon as the stream is connected to the server.

'reconnecting'

client will emit reconnecting when trying to reconnect to the Redis serverafter losing the connection. Listeners are passed an object containing delay(in ms from the previous try) and attempt (the attempt #) attributes.

'error'

client will emit error when encountering an error connecting to the Redisserver or when any other in node_redis occurs. If you use a command withoutcallback and encounter a ReplyError it is going to be emitted to the errorlistener.

So please attach the error listener to node_redis.

'end'

client will emit end when an established Redis server connection has closed.

'drain' (deprecated)

client will emit drain when the TCP connection to the Redis server has beenbuffering, but is now writable. This event can be used to stream commands in toRedis and adapt to backpressure.

If the stream is buffering client.should_buffer is set to true. Otherwise thevariable is always set to false. That way you can decide when to reduce yoursend rate and resume sending commands when you get drain.

You can also check the return value of each command as it will also return thebackpressure indicator (deprecated). If false is returned the stream had tobuffer.

'warning'

client will emit warning when password was set but none is needed and if adeprecated option / function / similar is used.

'idle' (deprecated)

client will emit idle when there are no outstanding commands that areawaiting a response.

redis.createClient()

If you have redis-server running on the same machine as node, then thedefaults for port and host are probably fine and you don't need to supply anyarguments. createClient() returns a RedisClient object. Otherwise,createClient() accepts these arguments:

• redis.createClient([options])
• redis.createClient(unix_socket[, options])
• redis.createClient(redis_url[, options])
• redis.createClient(port[, host][, options])

Tip: If the Redis server runs on the same machine as the client considerusing unix sockets if possible to increase throughput.

Note: Using 'rediss://.. for the protocol in a redis_url will enable a TLS socket connection. However, additional TLS options will need to be passed in options, if required.

options object properties

retry_strategy example

client.auth(password[, callback])

When connecting to a Redis server that requires authentication, the AUTHcommand must be sent as the first command after connecting. This can be trickyto coordinate with reconnections, the ready check, etc. To make this easier,client.auth() stashes password and will send it after each connection,including reconnections. callback is invoked only once, after the response tothe very first AUTH command sent.NOTE: Your call to client.auth() should not be inside the ready handler. Ifyou are doing this wrong, client will emit an error that lookssomething like this Error: Ready check failed: ERR operation not permitted.

backpressure

stream

The client exposed the used stream inclient.stream and if the stream or client had tobufferthe command in client.should_buffer. In combination this can be used toimplement backpressure by checking the buffer state before sending a command andlistening to the streamdrain event.

client.quit(callback)

This sends the quit command to the redis server and ends cleanly right after allrunning commands were properly handled. If this is called while reconnecting(and therefore no connection to the redis server exists) it is going to end theconnection right away instead of resulting in further reconnections! All offlinecommands are going to be flushed with an error in that case.

client.end(flush)

Forcibly close the connection to the Redis server. Note that this does not waituntil all replies have been parsed. If you want to exit cleanly, callclient.quit() as mentioned above.

You should set flush to true, if you are not absolutely sure you do not careabout any other commands. If you set flush to false all still running commandswill silently fail.

This example closes the connection to the Redis server before the replies havebeen read. You probably don't want to do this:

client.end() without the flush parameter set to true should NOT be used in production!

Error handling (>= v.2.6)

Currently the following error subclasses exist:

• RedisError: All errors returned by the client
• ReplyError subclass of RedisError: All errors returned by Redis itself
• AbortError subclass of RedisError: All commands that could not finish dueto what ever reason
• ParserError subclass of RedisError: Returned in case of a parser error(this should not happen)
• AggregateError subclass of AbortError: Emitted in case multiple unresolvedcommands without callback got rejected in debug_mode instead of lots ofAbortErrors.

All error classes are exported by the module.

Example:

Every ReplyError contains the command name in all-caps and the arguments (args).

If node_redis emits a library error because of another error, the triggeringerror is added to the returned error as origin attribute.

Error codes

node_redis returns a NR_CLOSED error code if the clients connection dropped.If a command unresolved command got rejected a UNCERTAIN_STATE code isreturned. A CONNECTION_BROKEN error code is used in case node_redis gives upto reconnect.

client.unref()

Call unref() on the underlying socket connection to the Redis server, allowingthe program to exit once no more commands are pending.

This is an experimental feature, and only supports a subset of the Redisprotocol. Any commands where client state is saved on the Redis server, e.g.*SUBSCRIBE or the blocking BL* commands will NOT work with .unref().

Friendlier hash commands

Most Redis commands take a single String or an Array of Strings as arguments,and replies are sent back as a single String or an Array of Strings. Whendealing with hash values, there are a couple of useful exceptions to this.

client.hgetall(hash, callback)

The reply from an HGETALL command will be converted into a JavaScript Object bynode_redis. That way you can interact with the responses using JavaScriptsyntax.

Example:

Output:

client.hmset(hash, obj[, callback])

Multiple values in a hash can be set by supplying an object:

The properties and values of this Object will be set as keys and values in theRedis hash.

client.hmset(hash, key1, val1, .. keyn, valn, [callback])

Multiple values may also be set by supplying a list:

Publish / Subscribe

Example of the publish / subscribe API. This program opens twoclient connections, subscribes to a channel on one of them, and publishes to thatchannel on the other:

When a client issues a SUBSCRIBE or PSUBSCRIBE, that connection is put intoa 'subscriber' mode. At that point, only commands that modify the subscriptionset are valid and quit (and depending on the redis version ping as well). Whenthe subscription set is empty, the connection is put back into regular mode.

If you need to send regular commands to Redis while in subscriber mode, justopen another connection with a new client (hint: use client.duplicate()).

Subscriber Events

If a client has subscriptions active, it may emit these events:

'message' (channel, message)

Client will emit message for every message received that matches an active subscription.Listeners are passed the channel name as channel and the message as message.

'pmessage' (pattern, channel, message)

Client will emit pmessage for every message received that matches an activesubscription pattern. Listeners are passed the original pattern used withPSUBSCRIBE as pattern, the sending channel name as channel, and themessage as message.

'message_buffer' (channel, message)

This is the same as the message event with the exception, that it is alwaysgoing to emit a buffer. If you listen to the message event at the same time asthe message_buffer, it is always going to emit a string.

'pmessage_buffer' (pattern, channel, message)

This is the same as the pmessage event with the exception, that it is alwaysgoing to emit a buffer. If you listen to the pmessage event at the same timeas the pmessage_buffer, it is always going to emit a string.

'subscribe' (channel, count)

Client will emit subscribe in response to a SUBSCRIBE command. Listeners arepassed the channel name as channel and the new count of subscriptions for thisclient as count.

'psubscribe' (pattern, count)

Client will emit psubscribe in response to a PSUBSCRIBE command. Listenersare passed the original pattern as pattern, and the new count of subscriptionsfor this client as count.

'unsubscribe' (channel, count)

Client will emit unsubscribe in response to a UNSUBSCRIBE command. Listenersare passed the channel name as channel and the new count of subscriptions forthis client as count. When count is 0, this client has left subscriber modeand no more subscriber events will be emitted.

'punsubscribe' (pattern, count)

Client will emit punsubscribe in response to a PUNSUBSCRIBE command.Listeners are passed the channel name as channel and the new count ofsubscriptions for this client as count. When count is 0, this client hasleft subscriber mode and no more subscriber events will be emitted.

client.multi([commands])

MULTI commands are queued up until an EXEC is issued, and then all commandsare run atomically by Redis. The interface in node_redis is to return anindividual Multi object by calling client.multi(). If any command fails toqueue, all commands are rolled back and none is going to be executed (Forfurther information look attransactions).

Multi.exec([callback])

client.multi() is a constructor that returns a Multi object. Multi objectsshare all of the same command methods as client objects do. Commands arequeued up inside the Multi object until Multi.exec() is invoked.

If your code contains an syntax error an EXECABORT error is going to be thrownand all commands are going to be aborted. That error contains a .errorsproperty that contains the concrete errors.If all commands were queued successfully and an error is thrown by redis whileprocessing the commands that error is going to be returned in the result array!No other command is going to be aborted though than the onces failing.

You can either chain together MULTI commands as in the above example, or youcan queue individual commands while still sending regular client command as inthis example:

In addition to adding commands to the MULTI queue individually, you can alsopass an array of commands and arguments to the constructor:

Multi.exec_atomic([callback])

Identical to Multi.exec but with the difference that executing a single commandwill not use transactions.

client.batch([commands])

Php Serialize Array

Identical to .multi without transactions. This is recommended if you want toexecute many commands at once but don't have to rely on transactions.

BATCH commands are queued up until an EXEC is issued, and then all commandsare run atomically by Redis. The interface in node_redis is to return anindividual Batch object by calling client.batch(). The only differencebetween .batch and .multi is that no transaction is going to be used.Be aware that the errors are - just like in multi statements - in the result.Otherwise both, errors and results could be returned at the same time.

If you fire many commands at once this is going to boost the execution speedsignificantly compared to firing the same commands in a loop without waiting forthe result! See the benchmarks for further comparison. Please remember that allcommands are kept in memory until they are fired.

Optimistic Locks

Using multi you can make sure your modifications run as a transaction, but youcan't be sure you got there first. What if another client modified a key whileyou were working with it's data?

To solve this, Redis supports the WATCHcommand, which is meant to be used with MULTI:

The above snippet shows the correct usage of watch with multi. Every time awatched key is changed before the execution of a multi command, the executionwill return null. On a normal situation, the execution will return an array ofvalues with the results of the operations.

As stated in the snippet, failing the execution of a multi command being watchedis not considered an error. The execution may return an error if, for example, theclient cannot connect to Redis.

An example where we can see the execution of a multi command fail is as follows:

WATCH limitations

Redis WATCH works only on whole key values. For example, with WATCH you canwatch a hash for modifications, but you cannot watch a specific field of a hash.

The following example would watch the keys foo and hello, not the field helloof hash foo:

This limitation also applies to sets ( cannot watch individual set members )and any other collections.

Monitor mode

Redis supports the MONITOR command, which lets you see all commands receivedby the Redis server across all client connections, including from other clientlibraries and other computers.

A monitor event is going to be emitted for every command fired from any clientconnected to the server including the monitoring client itself. The callback forthe monitor event takes a timestamp from the Redis server, an array of commandarguments and the raw monitoring string.

Example:

Some other things you might like to know about.

client.server_info

After the ready probe completes, the results from the INFO command are saved inthe client.server_info object.

The versions key contains an array of the elements of the version string foreasy comparison.

redis.print()

A handy callback function for displaying return values when testing. Example:

This will print:

Note that this program will not exit cleanly because the client is still connected.

Multi-word commands

To execute redis multi-word commands like SCRIPT LOAD or CLIENT LIST passthe second word as first parameter:

client.duplicate([options][, callback])

Duplicate all current options and return a new redisClient instance. All optionspassed to the duplicate function are going to replace the original option. Ifyou pass a callback, duplicate is going to wait until the client is ready andreturns it in the callback. If an error occurs in the meanwhile, that is goingto return an error instead in the callback.

One example of when to use duplicate() would be to accommodate the connection-blocking redis commands BRPOP, BLPOP, and BRPOPLPUSH. If these commandsare used on the same redisClient instance as non-blocking commands, thenon-blocking ones may be queued up until after the blocking ones finish.

Another reason to use duplicate() is when multiple DBs on the same server areaccessed via the redis SELECT command. Each DB could use its own connection.

client.send_command(command_name[, [args][, callback]])

All Redis commands have been added to the client object. However, if newcommands are introduced before this library is updated or if you want to addindividual commands you can use send_command() to send arbitrary commands toRedis.

All commands are sent as multi-bulk commands. argsDownload touchpad driver for acer aspire e 15 touch. can either be an Array ofarguments, or omitted / set to undefined.

redis.add_command(command_name)

Calling add_command will add a new command to the prototype. The exact commandname will be used when calling using this new command. Using arbitrary argumentsis possible as with any other command.

client.connected

Boolean tracking the state of the connection to the Redis server.

client.command_queue_length

The number of commands that have been sent to the Redis server but not yetreplied to. You can use this to enforce some kind of maximum queue depth forcommands while connected.

client.offline_queue_length

The number of commands that have been queued up for a future connection. You canuse this to enforce some kind of maximum queue depth for pre-connectioncommands.

Commands with Optional and Keyword arguments

This applies to anything that uses an optional [WITHSCORES] or [LIMIT offset count] in the redis.io/commands documentation.

Example:

Performance

Much effort has been spent to make node_redis as fast as possible for commonoperations.

Debugging

To get debug output run your node_redis application with NODE_DEBUG=redis.

This is also going to result in good stack traces opposed to useless onesotherwise for any async operation.If you only want to have good stack traces but not the debug output run yourapplication in development mode instead (NODE_ENV=development).

Good stack traces are only activated in development and debug mode as thisresults in a significant performance penalty.

Comparison:Useless stack trace:

Good stack trace:

How to Contribute

• Open a pull request or an issue about what you want to implement / change. We're glad for any help!
• Please be aware that we'll only accept fully tested code.

Contributors

The original author of node_redis is Matthew Ranney

The current lead maintainer is Ruben Bridgewater

Many otherscontributed to node_redis too. Thanks to all of them!

License

Node Js Php Serialize Multiple Myeloma

Consolidation: It's time for celebration

Right now there are two great redis clients around and both have some advantagesabove each other. We speak about ioredis and node_redis. So after talking toeach other about how we could improve in working together we (that is @luin and@BridgeAR) decided to work towards a single library on the long run. But step bystep.

First of all, we want to split small parts of our libraries into others so thatwe're both able to use the same code. Those libraries are going to be maintainedunder the NodeRedis organization. This is going to reduce the maintenanceoverhead, allows others to use the very same code, if they need it and it's wayeasyer for others to contribute to both libraries.

We're very happy about this step towards working together as we both want togive you the best redis experience possible.

Js Serialize Object

If you want to join our cause by help maintaining something, please don'thesitate to contact either one of us.