我是laravel的新手,并且很难找到将一个表导出到csv的方法。 我在控制器类中尝试了以下代码,但它给了我一个错误:
public function get_export()
{
$table = Cpmreport::all();
$file = fopen('file.csv', 'w');
foreach ($table as $row) {
fputcsv($file, $row);
}
fclose($file);
return Redirect::to('consolidated');
}
Cpmreport的模型类:
class Cpmreport extends Eloquent
{
public static $table='cpm_report';
}
错误:
Message:
fputcsv() expects parameter 2 to be array, object given
Location:
C:\xampp\htdocs\cpm_report\application\controllers\cpmreports.php on line 195
任何帮助都将不胜感激。
答案 0 :(得分:20)
简单方法
Route::get('/csv', function() {
$table = Cpmreport::all();
$output='';
foreach ($table as $row) {
$output.= implode(",",$row->toArray());
}
$headers = array(
'Content-Type' => 'text/csv',
'Content-Disposition' => 'attachment; filename="ExportFileName.csv"',
);
return Response::make(rtrim($output, "\n"), 200, $headers);
});
答案 1 :(得分:7)
fputcsv($file, $table);
应为fputcsv($file, $row)
,不是吗?
使用Eloquent的to_array()
方法将对象转换为数组:http://laravel.com/docs/database/eloquent#to-array
public function get_export()
{
$table = Cpmreport::all();
$file = fopen('file.csv', 'w');
foreach ($table as $row) {
fputcsv($file, $row->to_array());
}
fclose($file);
return Redirect::to('consolidated');
}
答案 2 :(得分:2)
选择MySQL数据查询。
$data = \DB::connection('mysql')->select($select);
调用以下功能:
query_to_csv($data, 'data.csv');
function data_to_csv($data, $filename)
{
$fp = fopen($filename, 'w');
foreach ($data as $row) {
fputcsv($fp, $row);
}
fclose($fp);
}
0.1百万条记录需要1秒才能创建。
答案 3 :(得分:-1)
这更好,更简单。
$file_name = "abc";
$postStudent = Input::all();
$ck = DB::table('loan_tags')->select('LAN')->where('liabilitiesId', $postStudent['id'])->get();
$i = 0;
foreach ($ck as $row) {
$apps[$i]['LAN'] = $row->LAN;
$apps[$i]['Account_number'] = $postStudent['account_number'];
$apps[$i]['Bank_Name'] = $postStudent['bank_name'];
$i++;
}
ob_end_clean();
ob_start();
Excel::create($file_name, function($excel) use($apps){
$excel->sheet('Sheetname', function($sheet) use($apps){
$sheet->row(1, array(
'LAN', 'Account number' , 'Bank Name'
));
$k = 2;
foreach ($apps as $deta) {
$sheet->row($k, array($deta['LAN'], $deta['Account_number'], $deta['Bank_Name']
));
$k++;
}
});
})->download('xlsx');