我对级联ajax选择实现的类别，变体和子变体进行了以下数组设置。
$config['categories']= array(
'MEN'=>array(
'Tanks',
'Bags & Wallets'=>array('Backpacks','Briefcases','Messenger bags','Wallets'),
'Belts & Buckles',
'Bottoms'=>array('Pants','Shorts','Swim','Underwear'),
'Coats & Jackets'=>array('Blazers','Coats','Jackets'),
'Cufflinks',
'Hats',
'Shirts',
'Shoes',
'Suits',
'Sweaters',
'T-Shirts',
'Ties',
'Clips & Bow Ties',
'Other Clothing',
'Other Accessories'
),
'WOMEN'=>array(
'Accessories'=>array('Belts','Eyewear','Gloves & Mittens','Hats Legwear','Scarves','Watches','Shoe Accessories'),
'Bags & Purses',
)
);
我正在使用ajax构建级联类别下拉列表。
public function get_sub_categories_ajax() {
$categories_selected = $this->input->post('category');
$load_all_catagories = $this->config->item('categories');
$result = $load_all_catagories[strtoupper($categories_selected)];
$subcategories = array();
foreach($result as $key => $value) {
$subcategories[$key] = $value;
}
if(!$this->input->is_ajax_request()) {
exit('Not allowed');
} else {
$result = array('#'=>'Please Select Variation')+$result;
header('Content-Type: application/x-json; charset=utf-8');
echo ( json_encode( array_values($subcategories) ) );
}
}
我遇到的问题是，当我选择＆＃34; women＆＃34; 时，我希望返回以下值 [配件，包和钱包] 当选择＆＃34; bags＆＃34; 时，我想列出空。同样，当选择配件时，我想返回 [＆＃39; Belts＆＃39;，＆＃39; Eyewear＆＃39;＆＃39;手套] 。