PHP create dynamic array in a multidimensional array

Question

I want to dynamic create an array based on a number inside a multidimensional array

here is the code

$meta_box = array(  
\'id\' => \'my-meta-box\',
         


        

Answer 1

Just add them dynamically by iterating over the number of ids:

$meta_box = array
(
    'id' => 'my-meta-box',
    'title' => 'Custom Input Fields',
    'page' => 'page',
    'context' => 'normal',
    'priority' => 'high',
    'fields' => array ()
);


$dynamicNumber = 2;
$idPrefix = 'textarea';
assert('$dynamicNumber > 0');
$dynamicIds = range(1, $dynamicNumber);

$fields = &$meta_box['fields'];
foreach($dynamicIds as $id)
{
    $fields[] = array( //this array must be created dynamic 
                      'name' => 'Textarea',
                      'desc' => 'Enter big text here',
                      'id' => sprintf('%s%d', $idPrefix, $id), //id is textarea + number
                      'type' => 'textarea',
                      'std' => 'Default value'
                  );
}
unset($fields);

Demo