Single column CSV to two column MySql table data store - php

Question

I have a csv file which contains 2000 data in one single column. The data format is like following:
name 100/1
name 100/2
name 105/6
...
So the general format is 'text integer_one/integer_two' Now I want it to store in a mysql database table with 2 columns. column_1 should have the data integer_one, and column_2 should have the data integer_two
How can I do this using php to push the data into mysql?

Answer 1

First start by extracting your values. If all your data is formated like in your example, you can use a simple explode.
$lines = explode(",", $data); // $data should be your file extracted into a string
foreach ($lines as $line) {
$temp = explode(" ", $line);
$name = $temp[0];
$temp_2 = explode("/", $temp[1]);
$integer_1 = $temp_2[0];
$integer_2 = $temp_2[1];
$query = "INSERT INTO table_two_columns SET name = '{$name}', integer_1 = '{$integer_1}', integer_2 = '{$integer_2}'";
}
Well that's my take on your problem.

Answer 2

Use ph function fgetcsv function to read a csv file (example is give in this page) then take each in loop and parse it using function explode() and create query from it and save in database

Answer 3

Take a look at preg_match, you should be able to get these values using a fairly trivial regular expression, like:
preg_match(/\w+\s*(\d+)\\\/(\d+)/, $row, $matches);
var_dump($matches);
To pull the data from a file take a look at fgets there are example of reading the file line-by-line to get the $row variable in the code above.
You can then write each line to the database using an INSERT statement.
Some things to consider:
How large is the file?
How often do you need to insert this data - is it a one-off?
These things will influence how you build your code; there are multiple ways to bulk insert data, and if this is just a one-off run then I would suggest maniuplating the text data using sed or similar, and then bulk inserting using the native methods of your database of choice (for mysql see LOAD DATA INFILE, or using the \. option in the client)
If the file is large and you need to insert things regularly, look at using prepared statements, and/or the multiple insert syntax:
INSERT INTO mytable (name, number, anothernumber) VALUES('paul', 1, 2),('bob',2,1)

Answer 4

have a look at fopen() and fread() or fgetcsv() php functions to handle the files, with them you should be able to loop through the lines of the cvs file, If you have control over your server configuration, I would suggest you to have a look into SplFileObject instead, because you can handle the files more efficient/elegantly, and object oriented. but require you to enable SPL. This last one is my recommendation, as you could read the file like this:
function random_name(){
$file_name = "names.csv";
if(is_readable($file_name)){
$file = new SplFileObject($file_name);
$file->seek($file->getSize());
$linesTotal = $file->key();
$file->seek(rand(1,$linesTotal-1));
$line = $file->fgetcsv();
return $line[4];
}
}
This was a sample script of mine to get a random name from a 1000 name cvs file.
As you loop and get the file information, you can then use explode(), this function separates your string by the separator you define, in your case it would be:
$array = explode("/", $myLine);
And you would access like this:
$array[0] or $array[1] to get the value