Fetch table by column name : PHP ,PDO

Question

I have the following table:

columns, id , name , value

I want to get from pdo result like the following:

array = ["name1", "name2" ,"name3"]

and each "name" array will hold the value

so to get the value of name 1 I will do something like: $array["name1"]["value"] and I will get the value by name and not by id

I tried to that with :

$sth = $this->db->prepare("SELECT name ,value FROM table");

$result = $sth->fetchAll(FETCH_ASSOC);

but it returned index array and only by id I can get the name and value

Answer 1

To do this, you need to get an associative array of this type:

$list= array(
'name1'=>'value1',
'name2'=>'value2',
'name3'=>'value3'
)

and not the simple type you mentioned:

array = ["name1", "name2" ,"name3"]

So you follow this procedure:

 $res = $this->db->prepare("SELECT name,value FROM table");
    $res->execute($params);
    $fetch= $res->fetchAll(PDO::FETCH_ASSOC);

    $list = array();
    for ($i = 0; $i < count($fetch); $i++) {
        $list[$fetch[$i]['name']] = $fetch[$i]['value'];
    }

    $res->closeCursor();

Answer 2

You must make new array with converted data:

$sth = $this->db->prepare("SELECT name, value FROM table");
$result = array_values($sth->fetchAll(FETCH_ASSOC));
$new = [];
foreach($result as $ar) {
    $new[$ar['name']] = $ar['value'];
}