php - large csv file not uploaded to database -

i having csv file 30000 data trying upload data mysql not uploading data mysql.

but if try small data 100 data uploading database .

can me how make work

below code

my upload.php

<?php   include("db.php"); //upload file  $sql="select max(upload_id) contact"; $result=mysqli_query( $mysqli,$sql);       $row = mysqli_fetch_array($result);     $highest_id = $row[0]; //print $highest_id;  $uploadid = $highest_id+1;  //print $uploadid;  $dropdown = $_post['drop'];  print $dropdown;   if (isset($_post['submit'])) {          //import uploaded file database          $file = $_files['filename']['tmp_name'];           $handle = fopen($file,"r");       ($lines = 0; $data = fgetcsv($handle,1000,",",'"'); $lines++) {         if ($lines == 0) continue;         ($i = 0; $i <= 32; $i ++)         {             if (!isset($data[$i]))                 $data[$i] = '';          }                  $import="insert contact                   (name, contacttype, nationality, mobile1, country1,`mobile2`,`country2`,                   email1,`email2`, phone, fax,`country3`, twon, area, restatus, retype,                    reproject1, contactgroup, freezone1, gender,                    dateofbirth, married, children, educationlevel, jobrole,                    jobsector, driverslicense, language,media, media2, media3, media4, age,                    salary, created, upload, image, companyname,                    businesscategory, subcategory, upload_id)                   values('$data[0]', '$data[1]','$data[2]','$data[3]',                          '$data[4]', '$data[5]','$data[6]','$data[7]',                          '$data[8]','$data[9]','$data[10]','$data[11]',                          '$data[12]','$data[13]','$data[14]','$data[15]',                          '$data[16]','$data[17]','$data[18]','$data[19]',                          '$data[20]','$data[21]','$data[22]','$data[23]',                          '$data[24]','$data[25]','$data[26]','$data[27]','$data[28]','$data[29]','$data[30]',                          '$data[31]','$data[32]','$data[33]',".time().",'$data[35]','$data[36]','$data[37]', '$data[38]','$data[39]','$data[17]') ";                 print $import;                 mysqli_query( $mysqli,$import) or trigger_error("query failed! sql: $sql - error: ".mysqli_error(), e_user_error);               //view upload form } fclose($handle); print "import done";   //header("location: /uploadanddelete.php");  }else {  print "import failed";  }  ?> 

my uploaddata.php

<p>upload new csv browsing file , clicking on upload </p>  <form enctype='multipart/form-data' action="upload.php" method="post" class='form-horizontal form-column form-bordered'>  <p>file name import:   <input size='50' type='file' name='filename'><br /><br /> </p>                                              <input type="submit" name="submit" value="upload"/>  </form> 

it looks ok there can problems:

is file uploaded?

no: check upload_max_filesize , post_max_size in php.ini

is imported lines or no import line when have big file?

no: check memory_limit (php.ini) can increase this:

ini_set('memory_limit','16m'); 

yes: check max_execution_time (php.ini) can increase this:

set_time_limit ($seconds) 

if doesn't try debug in part of code dyinig