CODEWITHSUNDEEP
phpjquery
Manish Basdeo
Manish Basdeo

Reputation: 6269

How can I implement a push technology using php?

I have a kind of application that must query a db at periodic intervals..I want to use push technology such that when the database is updated, the server sends data to the client..How is it possible to implement that ?

Upvotes: 1

Views: 1349

Answers (2)

Eugen Rieck
Eugen Rieck

Reputation: 65274

We do this quite regularily - our way is "long polling":

  • From the client, start an async poll request
  • On the server, just keep this poll request waiting for e.g. 30secs (send a \0 or a blank every couple of seconds, if you need really long times)
  • When the database is updated, create some sort of event on the server side
  • When such an event is detected by a long-poll handler, write the resulting client notification and end the request
  • On the client, when an asyn poll ends, check it for notifications, work on them, then start the next long poll

Upvotes: 3

Kumar M
Kumar M

Reputation: 128

You can implement a web service/API using SOAP in PHP.

Upvotes: -2

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