Undefined index 0 php laravel (Might be duplicate)

Question

This might be a duplicate, but i couldn't found any solution to my problem. I am retrieving few records from database and trying to display them in view. But always getting Undefined index: 0 Exception. Here's controller code:

public function gettopfirms(){
    $top = Top::all();
    foreach ($top as $tFirm) {
        $topFirms[] = Firm::whereId($tFirm['id'])->get()->toArray();
    }
    return view('top', compact('topFirms'));
}

And here's the view (top.blade.php) code:

<?php
    foreach ($topFirms as $firm) {
        echo "<pre>";
        print_r($firm[0]); //or $firm[0]['name']
        echo "</pre>";
    }
?>

And here's the Error:

Undefined offset: 0 (View: xxxxx/resources/views/top.blade.php)

Here is when i simply print array in view

Array
(
 [0] => Array
    (
        [id] => 7092
        [rank] => 147
        [name] => Grupo Grana y Montero (GyM),
     )

)
Array
(
 [0] => Array 
  (
     [id] => 2 //And So On

Don't know what's wrong am i doing, struggling and googling, didn't found a solution.

Filip Koblański · Accepted Answer · 2016-10-06 07:50:48Z

1

The problem is that you probably do not check if the array is set or not. So the solution should be like this i.e.:

<?php
    foreach ($topFirms as $firm) {
        if (!isset($firm[0])) {
            continue; 
        }

        echo "<pre>";
        print_r($firm[0]); //or $firm[0]['name']
        echo "</pre>";
    }
?>

You might also want to filter it out earlier so here:

public function gettopfirms(){
    $top = Top::all();
    foreach ($top as $tFirm) {
        $topFirms[] = Firm::whereId($tFirm['id'])->get()->toArray();
    }
    $topFirms = array_filter($topFirms);
    return view('top', compact('topFirms'));
}

answered Oct 6, 2016 at 7:50

Filip Koblański

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