PHP function return multiple JSON object

Question

I have a php function that currently looks like this

function renderJson(PageArray $items) {
$myData = array();
$myData['title'] = [];
$myData['url'] = [];

// cycle through all the items
foreach($items as $item) {

    array_push($myData["title"],$item->title);
    array_push($myData["url"],$item->url);


}

return json_encode($myData);
}

It currently works in this shape as output

{"title":["A","B"],"url":["A","B"]}

But this is what I am trying to achieve

{"title":["A"],"url":["A"]},{"title":["B"],"url":["B"]}

I am trying to return it as a JSON encode.The $item->title and $item->url returns a string.Any help would be great.

You would need to construct an array of objects instead of an object with arrays inside it. What have you tryed? — Mathieu de Lorimier
– Mathieu de Lorimier, Commented Apr 3, 2018 at 14:05

Mickaël Leger · Accepted Answer · 2018-04-03 14:20:27Z

4

So now you get this :

{"title":["A","B"],"url":["A","B"]}

But you want this :

{"title":["A"],"url":["A"]},{"title":["B"],"url":["B"]}

What you want is add a new "item" each time you loop and each item have a title and an url. Right now you return an array that contain 2 sub-array : one for the title, one for the url.

Try this way :

function renderJson(PageArray $items) {
    // Your result array
    $myData = array();

    // cycle through all the items
    foreach($items as $item) {

        // Each time you loop, you add a new array in your main array with a title and an URL
        $myData[] = array(
            "title" => $item->title,
            "url"   => $item->url
        );
    }

    return json_encode($myData);
}

I used [] because he does what you need : push element at the end of your main array. It's the short way to use array_push(). Here is the documentation for more details : http://php.net/manual/en/function.array-push.php

The output will be :

[{"title":["A"],"url":["A"]},{"title":["B"],"url":["B"]}]

edited Apr 3, 2018 at 14:20

answered Apr 3, 2018 at 14:07

Mickaël Leger

3,4482 gold badges21 silver badges37 bronze badges

Sign up to request clarification or add additional context in comments.

6 Comments

Manuel Mannhardt Over a year ago

Please dont just post code as an answer, try and explain what you did and why this works :)

Squish Over a year ago

This helps alot though, please update and explain it more

Squish Over a year ago

@MickaelLeger Why is there a [ ] in $myData, is it for adding inside the subarray?

Mickaël Leger Over a year ago

@Squish I had a link for the documentation. It's the short way to use array_push : here I add a subarray in your main array for each item you have in items

Squish Over a year ago

@MickaelLeger Thank you for the help, I learned something new today

|

Federico klez Culloca · Accepted Answer · 2018-04-03 14:04:17Z

1

What you want to return is not, of course, valid json. At this point return an array containing those two objects (i.e., push the whole $item to $myData)

function renderJson(PageArray $items) {
    $myData = array();

    // cycle through all the items
    foreach($items as $item) {
        array_push($myData,['title' => $item->title, 'url' => $item->url]);
    }

    return json_encode($myData);
}

which gives you something in the form of

[{"title":"A","url":"A"},{"title":"B","url":"B"}]

answered Apr 3, 2018 at 14:04

Federico klez Culloca

27.3k17 gold badges61 silver badges102 bronze badges

Comments

Manuel Mannhardt · Accepted Answer · 2018-04-03 14:04:29Z

0

You create invalid JSON by concatenation your JSON by comma. Either get your client (speak receiver of the json data) to split the result by comma and then parsing each JSON by its own.

Otherwise you could create a "big" JSON string, containing both (or all if there are more) of your JSON data.

Just create an array in PHP, add a new element for each JSON data, then json_encode() it and go over it by a loop in your client.

What you will use in the end, doesnt really matter that much, but I would use the second approach by a lot over the first, since it´s much cleaner.

answered Apr 3, 2018 at 14:04

Manuel Mannhardt

2,2011 gold badge19 silver badges23 bronze badges

Collectives™ on Stack Overflow

PHP function return multiple JSON object

3 Answers 3

6 Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

6 Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related