通过AJAX传递给控制器​​时，关联数组不是数组

Question

我正在尝试通过AJAX将此数组var data_array传递到我的控制器

当我使用var data_array

时，这是alert(JSON.stringify(data_array));的值

这是我的AJAX方法

var project_details = $.extend({}, data_array);

    $.ajax({
       type: "POST",
       url: "<?php echo base_url('PPMP_controller/submitPPMP'); ?>",
       data: { data_array : $.param(project_details) },
       dataType: 'json',
       success: function(data) {
           alert('PPMP submission success!');
           alert(data);
       },
       error: function(errorw) {
           console.log(errorw);
       }
   });       

这是我的PPMP_controller

public function submitPPMP(){
    $data_array = $this->input->post('data_array');
    $value = $this->PPMP_model->submitPPMP($data_array);
    echo json_encode($value);
} 

这是我的模特

function submitPPMP($data_array){
    $date_format = 'DATE_W3C';

    $date_submitted = standard_date($date_format);
    $data = array(
        'user_id' => 1,
        'date_submitted' => $date_submitted,
        'first_lvl_status' => 0,
        'second_lvl_status' => 0,
        'third_lvl_status' => 0,
        'fourth_lvl_status' => 0,
        'submitted' => 1
    );
    $this->db->insert('project', $data);
    $id = $this->db->insert_id();

    if(is_array($data_array) || is_object($data_array)){
        return "yes";
        foreach($data_array as $object){
            $project_details = array(
                'project_id' => $id,
                'supply_id' => $object->supply_id,
                'supply_description' => $object->supply_description,
                'quantity' => $object->quantity,
                'price' => $object->price,
                'jan' => $object->jan,
                'feb' => $object->feb,
                'mar' => $object->mar,
                'apr' => $object->apr,
                'may' => $object->may,
                'jun' => $object->jun,
                'jul' => $object->jul,
                'aug' => $object->aug,
                'sep' => $object->sep,
                'oct' => $object->oct,
                'nov' => $object->nov,
                'dec' => $object->dec
            );
            $this->db->insert('project_details', $project_details);
        }
    }
    else{
        return "no";
    }
    return $this->db->last_query();
}

然而，从控制器传递到模型的数组不是数组，因为它不通过行if(is_array($data_array) || is_object($data_array))而是转到else条件和return "no"。

可能导致此数组未从控制器传递到模型的数组。感谢您的帮助。我使用Codeigniter 3.0作为MVC框架。

Answer 1

你将json传递给你的模型而不是数组，当你的模型应该是，

尝试var_dump($data_array)检查其数据类型，例如json或object或array

$data_array = json_decode($data_array); // to get object    
$data_array = json_decode($data_array,true); // to get array

您的PPMP_controller应该是

public function submitPPMP(){
    $data_array = $this->input->post('data_array');
    $data_array = json_decode($data_array); 
    $value = $this->PPMP_model->submitPPMP($data_array);
    echo json_encode($value);
}