Allow empty index of array in foreach loop

Question

Trying to insert data even if any index of array in foreach loop is empty. trying the following script its giving Undefined index: error in case of empty index.

$data = array();
if(count($_POST['data']) > 0 && !empty ($_POST['data'])){  
    foreach($_POST['data'] as $key => $array){
        $row = array();
        $row['team_id'] = intval($array['team_id']);
        $row['Note'] = strip_tags(trim(strval($array['Note'])));
        $row['result'] = strip_tags(trim(strval($array['result'])));
        $data[$key] = $row;
    }
        $sql = $db->prepare("INSERT INTO teams ('team_id','note','result') values (:team_id, :note, :result) ");

        foreach($data as $key => $array){
           $sql->execute(array(':team_id' => $array['team_id'], ':note' =>$array['Note'], ':result' => $array['result'], ));
    }
}

Check isset($_POST['data']) and is_array($_POST['data']) first. — arkascha
– arkascha, Commented Sep 19, 2018 at 6:14
@arkascha you mean instead of && !empty ($_POST['data']) . — SamDasti
– SamDasti, Commented Sep 19, 2018 at 6:16
No before every index that is unsure you would place isset($array['index']) first — DarkBee
– DarkBee, Commented Sep 19, 2018 at 6:19
Provide the data you are getting from $_POST['data']. Try this if(!empty ($_POST['data'])){ — Aman Rawat
– Aman Rawat, Commented Sep 19, 2018 at 6:19
That one does not make any sense anyway after the count($_POST['data']) > 0, does it? It can't be empty if its count is bigger than zero. — arkascha
– arkascha, Commented Sep 19, 2018 at 6:19

Josep Widtantio · Accepted Answer · 2018-09-19 07:21:12Z

1

You can prevent isset when set in variable

$row['team_id'] = isset($array['team_id']) ? intval($array['team_id']) : null;
$row['Note'] = isset($array['Note']) ? strip_tags(trim(strval($array['Note']))) : null;
$row['result'] = isset($array['result']) ? strip_tags(trim(strval($array['result']))) : null;

edited Sep 19, 2018 at 7:21

answered Sep 19, 2018 at 6:40

Josep Widtantio

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Niranjan K. · Accepted Answer · 2018-09-19 08:56:26Z

1

<?php

$data = array();
foreach ($_POST['data'] as $key => $array) {
    $data[$key]['team_id'] = isset($array['team_id']) ? intval($array['team_id']) : null;
    $data[$key]['Note'] = isset($array['Note']) ? strip_tags(trim(strval($array['Note']))) : null;
    $data[$key]['result'] = isset($array['result']) ? strip_tags(trim(strval($array['result']))) : null;

}

?>

answered Sep 19, 2018 at 8:56

Niranjan K.

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