CODEWITHSUNDEEP
phparrayscodeigniteractiverecordarray-column
Undermine2k
Undermine2k

Reputation: 1491

Return a flat array of column values from a CodeIgniter active record query

im returning data back from my db using codeigniter's database class , is there anyway I can put it into the same array without having to do additional array_merge logic after the loop completes?

foreach ($saved_forms[0] as $key => $value) {
     $this->db->select('form_text');
     $this->db->from('form_labels');
     $this->db->where('form_label', $key);
     $query = $this->db->get();
        
     $form_names = $query->result_array();
     $form_titles[] = $form_names;
}

result array

[4] => Array
    (
        [0] => Array
            (
                [form_text] => Participant Name
            )    
    )    
[5] => Array
    (
        [0] => Array
            (
                [form_text] => Date of Birth
            )    
    )

What I want:

 [0] => Array
       (
        [form_text] => Participant Name
        [form_text] => Date of Birth
       )

Upvotes: 1

Views: 7490

Answers (5)

mickmackusa
mickmackusa

Reputation: 47972

Most succinctly, fetch all qualifying rows associated with the $saved_forms[0] keys, then return the form_labels column from that array of zero or more objects. This will return a flat, indexed array of form_text values.

return array_column(
    $this->db
        ->where_in('form_label', array_keys($saved_forms[0]));
        ->get('form_labels')
        ->result(),
    'form_text'
);

Upvotes: 0

Adriano Rosa
Adriano Rosa

Reputation: 8771

When Running PHP 5 >= 5.5.0 you can achieve this with the built-in function array_column()

$form_names = $query->result_array();
$my_array = array_column($form_names, 'form_text');

Produces: 

Array ( 
 [0] => Participant Name 
 [1] => Date of Birth 
)

Upvotes: 2

omma2289
omma2289

Reputation: 54639

Try this

$query = $this->db->select('form_text')
         ->from('form_labels');
         ->where_in('form_label', array_keys($saved_forms[0]));
         ->get();

foreach( $query->result as $label){
   $form_titles[] = $label->form_text;
}

It will produce a single array with the texts

Upvotes: 3

M Khalid Junaid
M Khalid Junaid

Reputation: 64476

Simple use the where_in() use foreach to get all the keys and run your query in a go and get rid of running query again and again 

$keys=array();
foreach ($saved_forms[0] as $key => $value) {         
    $keys[] = $key;    
}

$this->db->select('form_text');
$this->db->from('form_labels');    
$this->db->where_in('form_label', $keys); 
// or $this->db->or_where_in();   
$query = $this->db->get();
$form_names  = $query->result_array();

Upvotes: 1

Derek
Derek

Reputation: 3435

Replace $form_titles[] = $form_names; with $form_titles[] = $form_names["form_text"];

Upvotes: 1

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