src/Helpers/FormHelper.php
public function isArray($key)
    {
        $fieldMeta = $this->getMeta();
        return isset($fieldMeta[$key]) && substr($fieldMeta[$key]->name, -strlen('[]')) === '[]';
    }
public function isArray($key)
    {
        $fieldMeta = $this->getMeta();
        return isset($fieldMeta[$key]) && substr($fieldMeta[$key]->name, -strlen('[]')) === '[]';
    }
public function isArray ( $ key ) { $ fieldMeta = $ this -> getMeta ( ) ; return isset ( $ fieldMeta [ $ key ] ) && substr ( $ fieldMeta [ $ key ] -> name , - strlen ( '[]' ) ) === '[]' ; }
Indicates whether the given key defines an array field.

@param string $key
The name of the field.

@return bool
Whether the given key defines an array field.
Indicates whether the given key defines an array field .