How to generate json response using php

Question

How to generate json response using php

In the model:

public function groups($getGroupId) {
        $cols = array(\'group_id\',\'name\');
        $sq         


        

Answer 1

I would recommend that you use the output from json_encode as it is. Takes less bandwidth. Only reason I see for all the whitespace is for debugging, and for that I'd rather use FireBug and/or JSONView in FireFox.

Anyways, if you really want to, you can maybe try the JSON_PRETTY_PRINT flag? Seems this was added in 5.4.0 though, so maybe not the version you're on supports it... There seems to be options you can use for that in the comments there though. Maybe you can find something useful? http://www.php.net/manual/en/function.json-encode.php#102091

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You say you have to create a jstree now, and that doesn't really have anything to do with what you're asking. You're two examples of data doesn't look anything alike at all. json_encode does not do anything special or magic. It just takes data and turns it into JSON. It's your job to make that data look correctly first, before encoding it. Your DB query most likely returns a set of flat rows, and you'll have to loop through it and somehow generate your tree the way you want it. You can probably find other questions here about how to create tree structures out of flat DB results.