I am imploding data inside of an array, called the following:
["Levels_SanctionLevel_array"]=>
string(14) "IR01,IR02,IR03"
I need to explode this data and input each value as a row inside of mysql. Such as
pri_id value
---------------
01 IR01
02 IR02
03 IR04
Now where I am getting stuck is this: The array listed above could have 1 value, 3 values (right now I am showing three values) or 5 values, and I don't want to input NULL values inside of my database.
A simple loop works correctly, but has the drawback of making multiple queries to the database:
$str = "IR01,IR02,IR03";
$vals = explode(',', $str);
foreach ($vals AS $value) {
// insert into database
}
As DB operations are a more significant bottleneck than building a query in PHP, I would opt to generate the SQL code for a single query as follows:
$str = "IR01,IR02,IR03";
$vals = explode(',', $str);
$query = 'INSERT INTO my_data VALUES ';
foreach ($vals as $value) {
$query .= "('', '".$value."'),";
}
$query = rtrim($query, ',');
// insert into database