CODEWITHSUNDEEP
phpjquerypost
Alfredo Hu
Alfredo Hu

Reputation: 38

Trigger a function upon receiving POST

Is there a way to trigger a function when a $_POST is received?

I have a php page that finishes executing and calls another page. The other page performs certain actions and POST updates back to this page. I need to be able to update a div as and when a POST is received.

Making an ajax request and using "success" callback as a trigger doesn't work since this will update my div ONLY ONCE. The problem is that this page will receive POST multiple times at irregular intervals and I need a way to trigger an action whenever POST is received.

Upvotes: 0

Views: 380

Answers (4)

CheeseConQueso
CheeseConQueso

Reputation: 6041

usually, I would do something like this...

$var_posted=0;

if($_POST['var']){$var_posted=1;}

then...

if($var_posted==1){some_function();}

Upvotes: 0

Rodrigo Ferreira
Rodrigo Ferreira

Reputation: 366

Use Ajax (I'd use jQuery) and set a time interval to check if there was a status change. The "other page" should not post back to the first page, but save data in a "requestable" area (might be an database, a file etc) where this new info/status will be stored and retrieved periodically by the Ajax request.

Upvotes: 1

Tadeck
Tadeck

Reputation: 137320

I would do this in the following way (below is the PHP code, just FYI):

if (!empty($_POST)) {
    // do whatever you mean by 'updating the div'
}

However AJAX may be more appropriate and it is (believe or not) more flexible.

AJAX call will be smaller load on your server and can update the box single or multiple times (depending on how you write the JS code) - in such case I recommend using jQuery for simplicity (if you are not familiar with JS).

Upvotes: 0

user973254
user973254

Reputation:

Use AJAX, because you can't trigger $_POST recieving in php, As I understand you just need to update some <div> inner html after post is recieved, and you are able to do it with jQuery events

Upvotes: 0

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