I am new in codeigniter framework. I am making an array within array and within array using foreach loop for getting record from 3 tables. I have make like this way array
Array
(
[devices] => Array
(
[0] => Array
(
[id] => 1
[device_name] => Smartphone
[device_image] => device-images/1d57a675edbb2ff97c5bc35fce27517c.png
[device_icon] => device-images/325af5a3587cdfc8f35ae345a2d432a3.png
[all_manufacturers] => Array
(
[0] => Array
(
[id] => 1
[fk_device_id] => 1
[manufacture] => Apple
[models] => Array
(
[0] => Array
(
[id] => 1
[fk_deviceid] => 1
[fk_manufactureid] => 1
[model_name] => iPhone 11 Pro Max
)
[1] => Array
(
[id] => 2
[fk_deviceid] => 1
[fk_manufactureid] => 1
[model_name] => iPhone 11 Pro
)
[2] => Array
(
[id] => 3
[fk_deviceid] => 1
[fk_manufactureid] => 1
[model_name] => iPhone 11
)
)
)
[1] => Array
(
[id] => 2
[fk_device_id] => 1
[manufacture] => Samsung
[models] => Array
(
)
)
[2] => Array
(
[id] => 3
[fk_device_id] => 1
[manufacture] => huawei
[models] => Array
(
)
)
[3] => Array
(
[id] => 5
[fk_device_id] => 1
[manufacture] => Sony
)
)
)
[1] => Array
(
[id] => 2
[device_name] => Tablet
[device_image] => device-images/fd9e3f3192547a89c07e30fbcb7e202b.png
[device_icon] => device-images/9f39fb4583174c71e3b7f92ec3e5ed86.png
[all_manufacturers] => Array
(
[0] => Array
(
[id] => 6
[fk_device_id] => 2
[manufacture] => Apple
[models] => Array
(
[0] => Array
(
[id] => 4
[fk_deviceid] => 2
[fk_manufactureid] => 6
[model_name] => iPad 3 (2012)
)
[1] => Array
(
[id] => 6
[fk_deviceid] => 2
[fk_manufactureid] => 6
[model_name] => iPad 2 (2011)
)
[2] => Array
(
[id] => 7
[fk_deviceid] => 2
[fk_manufactureid] => 6
[model_name] => iPad 4 (2012)
)
)
)
[1] => Array
(
[id] => 7
[fk_device_id] => 2
[manufacture] => Microsoft
)
)
)
[2] => Array
(
[id] => 3
[device_name] => Laptop
[device_image] => device-images/60042e62d2fa440d3c467114538a1293.png
[device_icon] => device-images/2044d96ba9274b5b1e3155103fa90506.png
[all_manufacturers] => Array
(
[0] => Array
(
[id] => 11
[fk_device_id] => 3
[manufacture] => Apple
)
)
)
[3] => Array
(
[id] => 4
[device_name] => Watch
[device_image] => device-images/8f10aad91a793372e50a3275db132e4e.png
[device_icon] => device-images/788dc55b9b6e0f805d63a42fd888e1bb.png
[all_manufacturers] => Array
(
[0] => Array
(
[id] => 9
[fk_device_id] => 4
[manufacture] => Apple
)
)
)
[4] => Array
(
[id] => 6
[device_name] => Camera
[device_image] => device-images/88929629884491fd080505b56f1b2b0d.png
[device_icon] => device-images/88fa1d78fe127e757c1cfc90ec925a14.png
)
)
)
Issue in view page because showing notice error of Undefined index: all_manufacturers view page code is below
<div class="row">
<div class="col-lg-3 col-md-6">
<div class="sidebar">
<?php if($devices) {
foreach($devices as $dkey => $device) {
$all_manufacturers = $device["all_manufacturers"];?>
<div class="dropdown cust-dropdown">
<button class="btn-dropdown cust-btn-dropdown" type="button"><div class="box-shop-icons"><img src="<?= base_url('assets/uploads/'.$device["device_icon"])?>" ></div>
<?= $device['device_name']?>
</button>
<div class="dropdown-menu-custom">
<div class="radio-btns cust-height">
<!-- inner radio button -->
<?php if ($all_manufacturers) {
foreach ($all_manufacturers as $manufacture) { ?>
<div class="dropdown">
<button class="btn btn-primary dropdown-toggle" type="button" data-toggle="dropdown"><?= $manufacture['manufacture']?>
<span class="caret"></span></button>
<ul class="dropdown-menu">
<li><a href="#">iPhone 11 pro max</a></li>
<li><a href="#">iPhone 11 pro</a></li>
<li><a href="#">iPhone 11</a></li>
<li><a href="#">iPhone Xs max</a></li>
<li><a href="#">iPhone Xs</a></li>
<li><a href="#">iPhone X</a></li>
<li><a href="#">iPhone 8plus</a></li>
</ul>
</div>
<?php } } ?>
</div>
</div>
</div>
<?php } } ?>
</div>
These 3 tables are linked with eachother
The last array doesn't have "all_manufacturers" set on it, so the error is that you are trying to set $all_manufacturers without checking if it is set or not.
Remove this line at the top of the loop for devices:
$all_manufacturers = $device["all_manufacturers"];
Then change this code:
<?php if ($all_manufacturers) {
foreach ($all_manufacturers as $manufacture) { ?>
To this:
if (!empty($device["all_manufacturers"])) {
foreach ($device["all_manufacturers"] as $manufacture) {
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