Populate a 2d array partially from data in another multidimensional array

Question

I am using fullcalendar (JSON) and want to use a foreach loop in a multidimensional array. What I've got is this:

echo json_encode(array( array( 'id' => 111, 'title' => $arr['new'][0] . ' new', 'start' => $arr['booking_date'][0], 'url' => "bookings/new/1", 'color' => '#F7F8E0', 'textColor' => 'black' ), array( 'id' => 111, 'title' => $arr['completed'][0] . ' completed', 'start' => $arr['booking_date'][0], 'url' => "bookings/completed/1", 'color' => '#D8D8D8', 'textColor' => 'black' ), array( 'id' => 111, 'title' => $arr['accepted'][0] . ' accepted', 'start' => $arr['booking_date'][0], 'url' => "bookings/accepted/1", 'color' => '#E0ECF8', 'textColor' => 'black' ), ));

Now I have to input every array manually, but how can I use foreach to do that for me?

I've tried something like this, but it didn't work. echo json_encode(array(

foreach($arr as $row) { array( 'id' => 111, 'title' => $arr['new'][0] . ' new', 'start' => $arr['booking_date'][0], 'url' => "bookings/new/1", 'color' => '#F7F8E0', 'textColor' => 'black' ), }

Wezelkrozum · Accepted Answer · 2014-05-30 23:30:33Z

I guess you are looking for this:

<?php $array = array(); $arr = array( array( 'new' => array("Title 1"), 'booking_date' => array("Booking date 1") ), array( 'new' => array("Title 2"), 'booking_date' => array("Booking date 2") ) ); foreach($arr as $row) { array_push($array, array( 'id' => 111, 'title' => $row['new'][0] . ' new', 'start' => $row['booking_date'][0], 'url' => "bookings/new/1", 'color' => '#F7F8E0', 'textColor' => 'black' )); } echo json_encode($array);

mickmackusa · Accepted Answer · 2024-09-19 16:36:23Z

Use array_map() as a functional-style iterator. Demo

echo json_encode( array_map( fn($row) => [ 'id' => 111, 'title' => $row['new'][0] . ' new', 'start' => $row['booking_date'][0], 'url' => 'bookings/new/1', 'color' => '#F7F8E0', 'textColor' => 'black' ], $array ), JSON_PRETTY_PRINT );

Or array destructuring syntax in a foreach loop. Demo

$result = []; foreach ($array as ['new' => [$t], 'booking_date' => [$b]]) { $result[] = [ 'id' => 111, 'title' => $t . ' new', 'start' => $b, 'url' => 'bookings/new/1', 'color' => '#F7F8E0', 'textColor' => 'black' ]; } echo json_encode($result, JSON_PRETTY_PRINT);

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