Getting Undefined offset: 2 error on foreach loop - php

Question

Here is the code :
foreach ($test_scores as $score) {
switch ($score['name']) {
case 'LE-TOD':
$le_tod = $score['banding'];
$le_tod_desc = $score["result_desc"];
if($score['std_score'] == 0) {
$le_tod_small = $scoring['tod']['no_pref_bottom'];
}
else {
$le_tod_small = $scoring['tod']['pref_bottom'].$score['banding'];
}
break;
This is where I get the error message :
public static function generateLSPReportFile($dataInput, $auto_download = true)
{
$file_type = $dataInput['file_type'];
$test_type_id = $dataInput['test_type_id'];
$he_she = array('male' => 'He', 'female' => 'She');
$his_her = array('male' => 'his', 'female' => 'her');
$candidate = \Candidate::where('id',$dataInput['candidate_id'])->first();
if(!$candidate)
return;
$candidate = $candidate->toArray();
$candidate_name = $candidate['first_name'].' '.$candidate['last_name'];
$order = \Order::with('client')->find($dataInput['order_id']);
if(!$order)
return;
$client = $order->client;
$order = $order->toArray();
//for test dates
$order_candidate = \OrderCandidate::candidateId($dataInput['candidate_id'])->orderId($dataInput['order_id'])->first()->toArray();
$order_tests = \OrderCandidateTest::orderCandidateId($order_candidate['id'])
->status(\Config::get('kcg.candidate_test_status_taken'))
->testId($dataInput['test_id'])
->with(array('test' => function($query){
$query->select(['id', 'name', 'description', 'abbreviation']);
}));
$tests_scores = \OrderCandidateTestScore::orderId($dataInput['order_id'])
->candidateId($dataInput['candidate_id'])
->testId($dataInput['test_id'])
->with(array('test' => function($query){
$query->select(['id', 'name', 'description', 'test_type_id']);
}));
$test_type = TestType::find($test_type_id);
$test_scores = $tests_scores->orderBy('sequence_no')->get()->toArray();
$order_tests = $order_tests->get()->toArray();
if(!$order_tests)
return;
if(!$tests_scores)
return;
It posted an error : ErrorException Undefined offset: 2. I'm really not sure what's causing this.
What am I doing wrong here? Please help me. Thank you

Answer 1

Typically, the Undefined offset message would be triggered by trying to access an array key which doesn't exist.
It seems that your code example might not actually be showing the part that triggered the error... In your case, I would expect the code to show something like $var[2], where the array does not actually contain an index of 2.
See this other question for a clearer representation of what that error means.