upload and import csv file into multiple table in mysql [closed] - php

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I would like to create and upload page in php and import the uploaded csv file data into multiple tables. tried searching here but looks like can't find any which is importing from a csv to multiple table. any help here is greatly appreciated. thank you.

Answer 1

As the another variant proposed above, you can read your CSV line-by-line and explode each line into fields. Each field will corresponds one variable.
$handle = fopen("/my/file.csv", "r"); // opening CSV file for reading
if ($handle) { // if file successfully opened
while (($CSVrecord = fgets($handle, 4096)) !== false) { // iterating through each line of our CSV
list($field1, $field2, $field3, $field4) = explode(',', $CSVrecord); // exploding CSV record (line) to the variables (fields)
// and here you can easily compose SQL queries and map you data to the tables you need using simple variables
}
fclose($handle); // closing file handler
}

Answer 2

If you have access to PHPmyadmin, you can upload the CSV into there. Then copy if over to each desired table

Answer 3

In response to your comment that some data is going to one table and other data is going to another table, here is a simple example.
Table1 has 3 fields: name, age and sex. Table2 has 2 fields: haircolour, shoesize. So your CSV could be laid out like:
john smith,32,m,blonde,11
jane doe,29,f,red,4
anders anderson,56,m,grey,9
For the next step you will be using the function fgetcsv. This will break each line of the csv into an array that you can then use to build your SQL statements:
if (($handle = fopen($mycsvfile, "r")) !== FALSE) {
while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
// this loops through each line of your csv, putting the values into array elements
$sql1 = "INSERT INTO table1 (`name`, `age`, `sex`) values ('".$data[0]."', '".$data[1]."', '".$data[2]."')";
$sql2 = "INSERT INTO table2 (`haircolour`, `shoesize`) values ('".$data[3]."', '".$data[4]."')";
}
fclose($handle);
}
Please note that this does not take any SQL security such as validation into account, but that is basically how it will work.

Answer 4

the problem seems to me to differentiate what field is for which table.
when you are sending a header like
table.field, table.field, table.field
and then split the header, you'll get all tables and fields.
could that be a way to go?
all the best
ps: because of your comment ...
A csv file has/can have a first line with fieldnames in it. when there is a need too copy csv data into more than one tables, then you can use a workaround to find out which field is for which table.
user.username, user.lastname, blog.comment, blog.title
"sam" , "Manson" , "this is a comment", "and I am a title"
Now, when reading the csv data you can work over the first line, split the title at the dot to find out wich tables are used and also the fields.
With this method you are able to copy csv data to more than one table.
But it means, you have to code it first :(
To split the fieldnames
// only the first line for the fieldnames
$topfields = preg_split('/,|;|\t/')
foreach( $topfields as $t => $f ) {
// t = tablename, f = field
}

Answer 5

if (($handle = fopen($mycsvfile, "r")) !== FALSE) {
while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
// this loops through each line of your csv, putting the values into array elements
$sql1 = "INSERT INTO table1 (`name`, `age`, `sex`) values ('".$data[0]."', '".$data[1]."', '".$data[2]."')";
$sql2 = "INSERT INTO table2 (`haircolour`, `shoesize`) values ('".$data[3]."', '".$data[4]."')";
}
fclose($handle);
}
in above code you use two insert queries how you gonna run these queries ?