Automatically generate MySQL table after csv file upload - php

Question

I am working on a PHP/MySQL project, it must verify the following tasks:
-> The user uploads multiple large CSV files at a time with the same column names (X,Y,Z) in MySQL tables
-> The web app must perform an arithmetic operation between each csv file's column
-> The user can download the csv files after the operation as Excel files
For the upload part, i need to find a way to auto generate a table in the database for each csv file uploaded -instead of creating it in advance-, because the user should be able to upload as many files as he wants.
i tried to set a while loop that contains a create table, the loop goes from 0 to $var which is the number of csv files the user wishes to upload, however it doesnt add any table, here's the code for that part :
$con= getdb();
$var=$_GET["quantity"];
mysql_query("set $i=0;
while $i<`".$var."` do
create table `couche".$var."` ( X float NOT NULL,Y float NOT NULL,Z float NOT NULL);
set $i= $i+1;
end while");
}

Answer 1

Hi you can use the following way to achieve it :
<?php
//database connection details
$link = mysqli_connect('localhost','root','password','db_name') or die('Could not connect to MySQL');
// path where your CSV file is located
define('CSV_PATH','/var/www/html/skerp_scripts/');
// Name of your CSV file
$csv_file = CSV_PATH . "importItems.csv";
if (($handle = fopen($csv_file, "r")) !== FALSE) {
$header = true; //If there is a header in first row then set it to true
while (($data = fgetcsv($handle, 100000, ",")) !== FALSE) {
if($header == true){
/* Here you can perform checks whether all the column are as expected
for Eg: in CSV1 : id, firstname, lastname, age
in CSV2 : firstname, age ,id
Than you can tell the user that there is a misatch
*/
$header = false;
continue;
}
$column1 = $data[0];
$column2 = $data[1];
$column3 = $data[2];
$calculation = $column1 * $column3;
$result = mysqli_query($link, "INSERT INTO table_name (column1, column2, column3)" VALUES($column1, $column2, $calculation));
}
}
echo "File data successfully imported to database!!";
mysqli_close($connect);