Insert array to mysqldb - php

Question

I'm trying to insert the following array ( from a html form ) but i believe i'm working with this array in a very awful way
The array:
Array (
[0] => Array (
[0] => local
[1] => file
[2] => a
)
[1] => Array (
[0] => remote
[1] => image
[2] => b
)
)
Actual code:
<?php
if(isset($_POST)==true && empty($_POST)==false){
$dataa = ($_POST['code_list']);
}
$data = array_chunk($_POST['code_list'],6);
foreach ($data as $type=>$ba) {
echo "INSERT INTO table(f1, f2, f3,) values (";
foreach ($ba as $a) {
echo "'$a',";
}
echo ");<br>";
}
?>
current output:
INSERT INTO table(f1, f2, f3,) values ('local','file','a',);
INSERT INTO table(f1, f2, f3,) values ('remote','image','b',);
What would be a decent way to do it?
EDIT : No need to show how to connect to a database, i just need to deal with the array data.

Answer 1

A few comments:
You should switch to PDO or mysqli and use prepared statements with bound variables. Now you have a serious sql injection problem;
You can combine multiple inserts in one insert statement: INSERT ... VALUES ('local','file','a'),('remote','image','b'),(etc.).You could also prepare your statement once and then execute it multiple times but combining would be more efficient, especially with a growing number of inserts.
A simple (uncomplete and untested...) example in PDO:
$sql = 'INSERT INTO table(f1, f2, f3) VALUES ';
$values = array();
$valCount = 1;
foreach ($data as $type=>$ba) {
$row = array();
foreach ($ba as $a) {
$val = ":value{$valCount}";
$row[] = $val;
$values[$val] = $a;
$valCount++;
}
$sql .= '(' . implode(', ', $row) . '),';
}
$sql = rtrim($slq, ',');
// execute the sql statement using PDO
$stmt = $db->prepare($sql);
$stmt->execute($values);
At the end of the loop and the trim, the sql should look like:
INSERT INTO table(f1, f2, f3) VALUES (:value1, :value2, :value3),(:value4, :value5, :value6)
And the value array should have the keys of :value1 - :value6 with your values.