By requesting this method, you can the data required, such as product line data list, product owner and other data, when adding a product, and you can bind this information to it.

public function getProductCreateParams()
{
    include_once('../vendor/zentao/zentao.php');
    $zentao      = new \zentao();
    $extraFields = array('title', 'products', 'lines', 'poUsers', 'qdUsers', 'rdUsers', 'groups');    // customize fields returned
    $result      = $zentao->getProductCreateParams(array(), $extraFields);
    return $result;
}

getProductCreateParams

{
    "status": 1,
    "msg": "success",
    "result": {
         // the navbar of ZenTao
        "title": "Add Product",
        // the list of the products added
        "products": {
            "1": "ZenTao-PHP-SDK",
            "2": "Product B",
            "3": "Product C",
            "4": "Product D",
            "5": "Product E",
            "6": "Product F"
        },
        // a list of products
        "lines": {
            "0": "",
            "5": "Product A",
            "6": "Product B",
            "7": "Product C"
        },
        // a list of product owners
        "poUsers": {
            "_empty_": "",
            "zhangsan": "Z: Zhang San",
            "admin": "A:admin",
            "lisi": "L: Li Si",
            "niuqi": "N: Niu Qi",
            "wangwu": "W: Wang Wu",
            "zhapliu": "Z: Zhao Liu"
        },
        // a list of of QA managers
        "qdUsers": {
            "_empty_": "",
            "zhapliu": "Z: Zhao Liu",
            "admin": "A:admin",
            "lisi": "L: Li Si",
            "niuqi": "N: Niu Qi",
            "wangwu": "W: Wang Wu",
            "zhangsan": "Z: Zhang San"
        },
        // a list of release managers
        "rdUsers": {
            "_empty_": "",
            "wangwu": "W: Wang Wu",
            "zhapliu": "Z: Zhao Liu",
            "lisi": "L: Li Si",
            "admin": "A:admin",
            "niuqi": "N: Niu Qi",
            "zhangsan": "Z: Zhang San"
        },
        // a whitelist
        "groups": {
            "1": "Admin",
            "2": "Dev",
            "3": "QA",
            "4": "PM",
            "5": "PO",
            "6": "Dev Manager",
            "7": "Product Director",
            "8": "QA Director",
            "9": "Senior Manager",
            "10": "Other",
            "11": "guest",
            "12": "limited user"
        }
    }
}

{
    "status": 0,
    "msg": "error",
    "result": []
}