How to prepare a model to return json_encode result ( Codeigniter )

问题

Here is my Model in Codeigniter with foreach loop in it.

Function.

  public function get_projectcount($qup) {
    echo'[';
    foreach ($qup as $row) {
        $id = $row['myid'];
        $this->db->select('*');
        $this->db->from('projects');
        $this->db->where(array('projects.accountId' => $id));
        $query = $this->db->get();

        $projects_count = count($query->result());
        echo '{"myid":"' . $row['myid'] . '",';
        echo '"total_projects":"' . $projects_count . '"},';
    }
    echo']';
}

I want this as a result of json_encode.

回答1:

You should change your function to:

public function get_projectcount($qup) {
    $result = array();
    foreach ($qup as $row) {
        $id = $row['myid'];
        $this->db->select('*');
        $this->db->from('projects');
        $this->db->where(array('projects.accountId' => $id));
        $query = $this->db->get();

        $projects_count = count($query->result());
        $result[] = array("myid" => $row['myid'], "total_projects" => $projects_count);
    }
    return json_encode($result);
}

回答2:

Try this code:

$data = [];
foreach ($qup as $row) {
    $id = $row['myid'];
    $this->db->select('*');
    $this->db->from('projects');
    $this->db->where(array('projects.accountId' => $id));
    $query = $this->db->get();
    $projects_count = count($query->result());
    array_push($data,array(
             'my_id' => $row['myid'],
             'total_projects' => $projects_count
         )
    );
}
json_encode($data, JSON_PRETTY_PRINT);

来源：https://stackoverflow.com/questions/29230238/how-to-prepare-a-model-to-return-json-encode-result-codeigniter