Php Opencart获取产品的父类别
如何将其转换为递归函数。这样就可以得到所选父id的所有类别的列表Php Opencart获取产品的父类别,php,opencart,Php,Opencart,如何将其转换为递归函数。这样就可以得到所选父id的所有类别的列表 public function getProductCategoryPath($product_id) { $query = $this->db->query("SELECT category_id FROM " . DB_PREFIX . "product_to_category WHERE product_id = '" . (int)$product_id . "' LIMIT 1"); if(
public function getProductCategoryPath($product_id) {
$query = $this->db->query("SELECT category_id FROM " . DB_PREFIX . "product_to_category WHERE product_id = '" . (int)$product_id . "' LIMIT 1");
if($query->row['category_id']){
// Parent category
$path = $query->row['category_id'];
// Category parent
$query = $this->db->query("SELECT parent_id FROM " . DB_PREFIX . "category WHERE category_id = '" . $query->row['category_id'] . "' AND parent_id != 0");
if($query->num_rows){
$path = $query->row['parent_id'] . "_" . $path;
// Sub-category parent
$query = $this->db->query("SELECT parent_id FROM " . DB_PREFIX . "category WHERE category_id = '" . $query->row['parent_id'] . "' AND parent_id != 0");
if($query->num_rows){
$path = $query->row['parent_id'] . "_" . $path;
}
}
return $path;
}
return false;
}
我不太明白您想要打印什么,但是对于递归,您将在
public function getProductCategoryPath($product_id) {
$query = $this->db->query("SELECT category_id FROM " . DB_PREFIX . "product_to_category WHERE product_id = '" . (int)$product_id . "' LIMIT 1");
if($query->row['category_id']){
// Parent category
$path = $query->row['category_id'];
// Category parent
$query = $this->db->query("SELECT parent_id FROM " . DB_PREFIX . "category WHERE category_id = '" . $query->row['category_id'] . "' AND parent_id != 0");
while($query->num_rows){
$path = $query->row['parent_id'] . "_" . $path;
// Sub-category parent
$query = $this->db->query("SELECT parent_id FROM " . DB_PREFIX . "category WHERE category_id = '" . $query->row['parent_id'] . "' AND parent_id != 0");
}
return $path;
}
return false;
}
我不太明白您想要打印什么,但是对于递归,您将在
public function getProductCategoryPath($product_id) {
$query = $this->db->query("SELECT category_id FROM " . DB_PREFIX . "product_to_category WHERE product_id = '" . (int)$product_id . "' LIMIT 1");
if($query->row['category_id']){
// Parent category
$path = $query->row['category_id'];
// Category parent
$query = $this->db->query("SELECT parent_id FROM " . DB_PREFIX . "category WHERE category_id = '" . $query->row['category_id'] . "' AND parent_id != 0");
while($query->num_rows){
$path = $query->row['parent_id'] . "_" . $path;
// Sub-category parent
$query = $this->db->query("SELECT parent_id FROM " . DB_PREFIX . "category WHERE category_id = '" . $query->row['parent_id'] . "' AND parent_id != 0");
}
return $path;
}
return false;
}