CodeIgniter: Exportieren von Daten aus der Datenbank in Excel und Download

Question

Ich arbeite an einem Projekt, das abhängig von den verschiedenen Bedingungen den Export von Daten aus MYSQL DB erfordert. Ich beziehe mich this:

Das ist mein Quellcode ist:

public function exportExcelData($records) 
{ 
    $heading = false; 
     if (!empty($records)) 
      foreach ($records as $row) { 
       if (!$heading) { 
        // display field/column names as a first row 
        echo implode("\t", array_keys($row)) . "\n"; 
        $heading = true; 
       } 
       echo implode("\t", ($row)) . "\n"; 
      } 
} 

public function fetchDataFromTable() 
{ 
    $query =$this->db->get('one_piece_characters'); // fetch Data from table 
    $allData = $query->result_array(); // this will return all data into array 
    $dataToExports = []; 
    foreach ($allData as $data) { 
     $arrangeData['Charater Name'] = $data['name']; 
     $arrangeData['Charater Profile'] = $data['profile']; 
     $arrangeData['Charater Desc'] = $data['description']; 
     $dataToExports[] = $arrangeData; 
    } 
    // set header 
    $filename = "dataToExport.xls"; 
       header("Content-Type: application/vnd.ms-excel"); 
       header("Content-Disposition: attachment; filename=\"$filename\""); 
    $this->exportExcelData($dataToExports); 
} 

Wenn ich es ohne where-Klausel verwenden, wird es gesamte Tabelle zu geben.

Wenn ich nur einzelne Where-Klausel verwenden, funktioniert es gut.

Bur, wenn ich mehrere wo Bedingungen verwenden. es gibt mir ein leeres Excel-Blatt.

Hat jemand eine Idee, wie man es mit mehreren Bedingungen machen kann?

Answer 1

Versuchen Sie diesen Code auf Ihrer Modelldatei:

function createcsv(){ 
     $this->load->dbutil(); 
     $this->load->helper('file'); 
     $this->load->helper('download'); 
     $delimiter = ","; 
     $newline = "\r\n"; 
     $filename = "filename.csv"; 
     $query = "SELECT * FROM YourTable"; //USE HERE YOUR QUERY 
     $result = $this->db->query($query); 
     $data = $this->dbutil->csv_from_result($result, $delimiter, $newline); 
     force_download($filename, $data); 

    } 

Answer 2

// ecport contect Liste in csv,

public function cnt_explode(){ 

$csvData[] =array( "Name", "Email Id","Mobile No.","Event", "City","location","No of guest","Event Date","Budget", 
        "Venue Type","Food","Drink","Description","Date"); 
$data = $this->contact_model->get_contact(NULL); 

foreach($data as $cnt){ 
$csvData[]=array(
     $cnt->name ,$cnt->email, $cnt->mobile_no, $cnt->event, $cnt->city, $cnt->location, $cnt->no_guest,$cnt->event_date,$cnt->budget, $cnt->venue_type, 
     $cnt->food, $cnt->drink, $cnt->description,$cnt->created_on, 
    ); 
} 

header("Pragma: public"); 
header("Expires: 0"); 
header("Cache-Control: must-revalidate, post-check=0, pre-check=0"); 
header("Content-Type: application/force-download"); 
header("Content-Type: application/octet-stream"); 
header("Content-Type: application/download"); 
header("Content-Disposition: attachment;filename=venuexpo_".time().".csv"); 
header("Content-Transfer-Encoding: binary"); 
$df = fopen("php://output", 'w'); 
array_walk($csvData, function($row) use ($df) { 
    fputcsv($df, $row); 
}); 
fclose($df); 
} 

///------------ downlode csv done --------------