Array not being parsed correctly - php

Question

Having issues with an array being parsed..
Here is a dump from the $_GET var
Array
(
[perm0] => Array
(
[0] => View
[1] => Add
[2] => Edit
[3] => Delete
[4] => Export
)
[perm1] => Array
(
[0] => View
[1] => Add
[2] => Export
)
[add] =>
)
When I try and use a foreach to insert into the db its only inserting the first item.
I am need to add the number based on the perm[] value such as perm0, perm1 etc
Here is my code
$i = 0;
$id = 0;
foreach($_GET['perm'.$i] as $permission)
{
do {
$perms = implode(":",$_GET['perm'.$i]);
mysqli_query($dbc,"INSERT INTO `permissions` (`mid`,`uid`,`permissions`) VALUES ('$id','99','$perms')");
echo mysqli_error($dbc);
} while(strpos($permission, $i) !== false);
$id++;
$i++;
}
I would have thought this would be really simple so I dont know why I'm having issues with it

Answer 1

The problem is that you are always only looking at the first item, your statement...
foreach($_GET['perm'.$i] as $permission)
will only ever pick up the perm0 item, even though you increment $i in the loop.
Instead, this code loops over all $_GET values, checks if they are the permN values and then inserts the value. I've also converted to prepared statements to add some level of security...
$i = 0;
$insert = mysqli_prepare ($dbc,"INSERT INTO
`permissions` (`mid`,`uid`,`permissions`)
VALUES (?,'99',?)");
foreach ( $_GET as $key => $param ) {
if ( $key == "perm$i" ) {
$perms = implode(":",$param);
mysqli_stmt_bind_param ($insert, "is", $i, $perms);
mysqli_execute($insert);
$i++;
}
}
As it's difficult for me to test this, please let me know if you have issues.