我想使用codeigniter将csv导入mysql .
这是我的源代码 .
我有一个来自客户端的非标准化事件日记CSV，我正在尝试加载到MySQL表中，以便我可以重构为一种理智的格式 .
我创建了一个名为“CSVImport”的表，它为CSV文件的每一列都有一个字段
function import_questions(){
$question_type=$_POST['question_type'];
$main_category_name=$_POST['main_category_name'];
$sub_category_name=$_POST['sub_category_name'];
$exam_name_list=$_POST['exam_name_list'];
$chapter_name=$_POST['chapter_name'];
$lesson_name=$_POST['lesson_name'];
$difficult_level=$_POST['difficult_level'];
$input_type=$_POST['input_type'];
$config = array();
$config['upload_path'] = './uploads/question_upload/';
$config['allowed_types'] = '*';
$config['max_size'] = '0';
$config['overwrite'] = FALSE;
$this->load->library('upload',$config);
$tb_name=$_FILES['userfile']['name'];
$tb_type=$_FILES['userfile']['type'];
if (!$this->upload->do_upload())
{
$error = array('error' => $this->upload->display_errors());
$this->session->set_flashdata('failure', 'File Uploaded Error!.');
header('Location:'.$this->data['base'].'cbulkupload/');
}
else
{
$datas = array('upload_data' => $this->upload->data());
$filename = $datas['upload_data']['full_path'];
require_once './excel/excel_reader2.php';
if($tb_type == 'application/vnd.ms-excel')
{
$data = new Spreadsheet_Excel_Reader($filename);
for($i=0;$i<=count($data->sheets);$i++) // Loop to get all sheets in a file.
{
//echo "count :".count($data->sheets);
//echo "
";print_r($data->sheets[$i][cells]);
if(count($data->sheets[$i][cells])>0) // checking sheet not empty
{
for($j=1;$j<=count($data->sheets[$i][cells]);$j++) // loop used to get each row of the sheet
{
//echo "
";print_r($data->sheets[$i][cells][$j]);
if($j != 1){
$QUESTION_AREA = mysql_real_escape_string(preg_replace("/\s+/"," ",$data->sheets[$i][cells][$j][1]));
$TEXT_OPTION1 = mysql_real_escape_string(preg_replace("/\s+/"," ",$data->sheets[$i][cells][$j][2]));
$TEXT_OPTION2 = mysql_real_escape_string(preg_replace("/\s+/"," ",$data->sheets[$i][cells][$j][3]));
$TEXT_OPTION3 = mysql_real_escape_string(preg_replace("/\s+/"," ",$data->sheets[$i][cells][$j][4]));
$TEXT_OPTION4 = mysql_real_escape_string(preg_replace("/\s+/"," ",$data->sheets[$i][cells][$j][5]));
$TEXT_OPTION5 = mysql_real_escape_string(preg_replace("/\s+/"," ",$data->sheets[$i][cells][$j][6]));
$RESULT_OPTION = $data->sheets[$i][cells][$j][7];
$ANSWER_DESCRIPTION = mysql_real_escape_string(preg_replace("/\s+/"," ",$data->sheets[$i][cells][$j][8]));
$query = "insert into add_question(MAIN_CATEGORY_ID,SUB_CATEGORY_ID,EXAM_NAME_ID,CHAPTER_ID,LESSON_ID,INPUT_TYPE,DIFFICULT_LEVEL,DIAGNOSIS_VALUE,CREATED_DATE,ACTIVE_STATUS,QUESTION_AREA,TEXT_OPTION1,TEXT_OPTION2,TEXT_OPTION3,TEXT_OPTION4,TEXT_OPTION5,RESULT_OPTION,ANSWER_DESCRIPTION) values(
'".$main_category_name."','".$sub_category_name."','".$exam_name_list."','".$chapter_name."','".$lesson_name."','".$input_type."','".$difficult_level."','".$question_type."',NOW(),'Y','".$QUESTION_AREA."','".$TEXT_OPTION1."','".$TEXT_OPTION2."','".$TEXT_OPTION3."','".$TEXT_OPTION4."','".$TEXT_OPTION5."','".$RESULT_OPTION."','".$ANSWER_DESCRIPTION."')";
mysql_query($query);
}
}
}
}
}
请帮助我找到更好的解决方案 .
上传csv后发现以下错误：
文件502 Bad Gateway
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