LAMP attendance system - php

Question

i just cant get the right approach to this problem, i have two arrays .
first array $attendance which has the following keys and values
Array
(
[attendance] => Array
(
[1] => 1
[2] => 1
[3] => 0
[4] => 1
[5] => 1
[6] => 0
[7] => 0
)
This is coming from a checkbox if checked value is 1 else value is 0
The second array is $remark
[remark] => Array
(
[1] =>
[2] =>
[3] => 'sick'
[4] =>
[5] =>
[6] => 'leave'
[7] => 'On assignment'
)
Now this is what the key 1- 7 stands for, the script is for employee's attendance the key 1-7 is the employeeID in the employee table in my database.
Now what i want to achieve is concatenate the array in such a way to look like this
Array
(
[0] => Array
(
[employeeID] => 7
[attendance] => 0
[remark] => 'On assignment'
)
[1] => Array
(
[employeeID] => 6
[attendance] => 0
[remark] => 'leave'
)
[2] => Array
(
[employeeID] => 5
[attendance] => 1
[remark] =>
)
//and so on
)
I am using Codeigniter If i am able to concatenate it i will also love to know how i will insert the multiple data into the employee table which looks like this,
employee's table
employeeID | date | status | remarks
the date i planned using CURDATE() then status will hold either 0 or 1 from attendance
Again: the keys from 1- 7 both on the remark and attendance's array is the employeeID
update!!
this is what i tried but did not work.
$att = $_POST['attendance'];
$remarks = $_POST['remark'];
foreach($att as $employee_id=>$status)
{
$x=0;
$employee[$x]['employee_id']=$employee_id;
$employee[$x]['status']=$status;
foreach($remarks as $employee_id=>$remark)
{
$employee[$x]['remark']=$remark;
$x++;
}
}

Answer 1

$attendance = $_POST['attendance'];
$remarks = $_POST['remark'];
$collect = array();
foreach ($attendance as $employeeID => $attending) {
$collect[] = array(
"employeeID" => $employeeID,
"attendance" => $attending,
"remark" => isset($remarks[$employeeID]) ? $remarks[$employeeID] : ""
);
}
$values = array();
foreach ($collect as $entry) {
$values[] = "(" . ((int) $entry["employeeID"]) . ",
CURDATE(),
" . ((int) $entry["attendance"]) . ",
'" . sql_escape($entry["remark"]) . "'
)";
}
$query = "INSERT INTO `attendance`
(`employeeID`, `date`, `status`, `remarks`)
VALUES
(" . implode(",", $values) . ")";
Make sure you replace sql_escape by the appropriate escape function. If you're using PDO use that.

Answer 2

Easy enough, to be honest...
$numOfEmployees = 8;
$concatArray = array();
foreach($attendance as $k => $v)
{
$concatArray[] = array("employeeID" => $k, "attendance" => $v, "remark" => $remark[$k];
}
If your attendance table is in anything like SQL, you could go about it with foreach on the above mentioned concatArray:
foreach($concatArray as $key => $value)
{
$remark = $value['remark'];
// sanitize remark for database
$query = "INSERT INTO employees (ID, Date, Status, Remarks) VALUES ({$value['employeeID']}, NOW(), {$value['attendance']}, '{$value['remark']}');";
// perform the actual query
}
Keep in mind that this is a very general example, making a lot of assumptions about the database.
As Frits notes, the remark field should be sanitized, perhaps by using mysqli_real_escape_string for MySQLi or quote for PDO - depends on what you are using.