Take care of that line: $this->lifetime = ini_get(‘session.gc_maxlifetime’); The system will search for session.gx_maxlifetime in php.ini, which is the « official » session time expire of your php instance. It’s in seconds, and by default it’s 1440 (so 25min approx.). This is how it works: PHP will drive the session: when the user connect for first time (session_start), it will call get, get nothing, then call set. Then the user call another page, the system will call get. BUT, it will also call set when session_write_close is called, which is always done at the end by PHP himself. This is because if you change $_SESSION, at one time PHP can’t get if you change it or not, so everytime there is it will rewrite to be sure.
So everytime user connect on PHP, the expire time is renew, always. Because while the session exist, the id remain the same (indeed). So the session will expire when the user stop using PHP side: memcache « set » use the expire parameter, so if PHP don’t call memcache again to renew, memcache will destroy the session by itself, making Node.JS stop using session also. After you need to take care on Node.JS side to not keep too long session. So on every command on Node.JS, you should check that command is ok (check Memcache), like PHP automatically do on the other side.
You can have a trouble here if you don’t refresh session on Node.JS side too, so by default you should catch it again everytime user call for new request on Node.JS •. On the other side (Node.JS), if you want to refresh data, take the session, and call the memcache set from Node.JS, i Recommand to use the same session expire as PHP do, so in this case i will do like that: On memcacheSessionHandler « open » function, send to memcache the value of session.gx_maxlifetime using set, with NO expire: $this->memcache->set(« sessions/lifetime », $this->lifetime, 0, 0); On Node.JS get that value, call memcache set with same expire. Then both (Node.JS and PHP), can keep the session alive, not only PHP.
After serialize/unserialize is. I have also written some code for importing serialized PHP data into PERL and then writing it back into PHP. I'm curious what is the algorithm the express uses to serialize objects to JSON. JSON serialization algorithm in express.js. Variables in Express.js on Node.js?
This is a great aritlce and absolutely what i was looking for. I would only suggest one thing that I think would be much better to use that instead calling the class you suggested and storing sessions in JSON format, I think it would be better to let the PHP store sessions in format it stores and on Node.JS side use PHP-unserialize module by NPM to parse PHP array to JSON.
This will be significant in many ways first that Node is much faster to parse into JSON array as compared to PHP parsing into JSON format, second PHP is still able to handle the session in older way without doing extra over work.
Parameters value The value to be serialized. Serialize() handles all types, except the -type. You can even serialize() arrays that contain references to itself. Circular references inside the array/object you are serializing will also be stored. Any other reference will be lost. When serializing objects, PHP will attempt to call the member function prior to serialization.
This is to allow the object to do any last minute clean-up, etc. Prior to being serialized. Likewise, when the object is restored using the member function is called. Note: Object's private members have the class name prepended to the member name; protected members have a '*' prepended to the member name. These prepended values have null bytes on either side. DO NOT serialize data and place it into your database.
Serialize can be used that way, but that's missing the point of a relational database and the datatypes inherent in your database engine. Doing this makes data in your database non-portable, difficult to read, and can complicate queries. If you want your application to be portable to other languages, like let's say you find that you want to use Java for some portion of your app that it makes sense to use Java in, serialization will become a pain in the buttocks. You should always be able to query and modify data in the database without using a third party intermediary tool to manipulate data to be inserted. I've encountered this too many times in my career, it makes for difficult to maintain code, code with portability issues, and data that is it more difficult to migrate to other RDMS systems, new schema, etc.
It also has the added disadvantage of making it messy to search your database based on one of the fields that you've serialized. That's not to say serialize() is useless.
A good place to use it may be a cache file that contains the result of a data intensive operation, for instance. There are tons of others. Just don't abuse serialize because the next guy who comes along will have a maintenance or migration nightmare. If you are going to serialie an object which contains references to other objects you want to serialize some time later, these references will be lost when the object is unserialized. The references can only be kept if all of your objects are serialized at once. That means: $a = new ClassA(); $b = new ClassB($a); //$b containes a reference to $a; $s1=serialize($a); $s2=serialize($b); $a=unserialize($s1); $b=unserialize($s2); now b references to an object of ClassA which is not $a.
$a is another object of Class A. Use this: $buf=$a; $buf=$b; $s=serialize($buf); $buf=unserialize($s); $a=$buf; $b=$buf; all references are intact. When you serialize an array the internal pointer will not be preserved. Apparently this is the expected behavior but was a bit of a gotcha moment for me. Copy and paste example below.
', print_r ( $array, 1 ), ';?. Bosch Wtl 6401 Manual Arts. If serializing objects to be stored into a postgresql database, the 'null byte' injected for private and protected members throws a wrench into the system. Even pg_escape_bytea() on the value, and storing the value as a binary type fails under certain circumstances.
For a dirty work around: this allows you to store the object in a readable text format as well. When reading the data back: The only gotcha's with this method is if your object member names or values may somehow contain the odd '~~NULL_BYTE~~' string. If that is the case, then str_replace() to a string that you are guaranteed not to have any where else in the string that serialize() returns. Also remember to define the class before calling unserialize(). If you are storing session data into a postgresql database, then this workaround is an absolute must, because the $data passed to the session's write function is already serialized. Thanks, Travis Hegner. I was trying to submit a serialized array through a hidden form field using POST and was having a lot of trouble with the quotes.
I couldn't figure out a way to escape the quotes in the string so that they'd show up right inside the form, so only the characters up to the first set of quotes were being sent. My solution was to base64_encode() the string, put that in the hidden form field, and send that through the POST method. Then I decoded it (using base64_decode()) on the other end.
This seemed to solve the problem. When using serialize() to convert, say, an array to a string to pass via HTML forms, you will likely run into issues with quoting. This is because serialize() puts values in double quotes.
Nani Teri Morni Ko Mor Le Gaye Mp3 Free Download. The simplest solution is to quote your HTML form value with single quotes rather than double quotes. (This *is* allowed, according to W3C specs.) So, instead of: you would want to use.