post an array and iterate throught it in PHP codeigniter - php

Question

This is the first time i create my own webservice (someone always did it for me before), so please bear with me.
I post this array :
$data = array(
'user_id' => $this->post('user_id'),
'group_id' => $this->post('group_id'),
'child_id' => $this->post('child_id'), //will be nested array
'custom' => $this->post('custom'),
'time' => $this->post('time'),
'date' => $this->post('date')
);
I tried to create a nested array with this : $this->post('child_id'), because user can post multiple child_id at once.
Then i tried to iterate through the child_id, because i need to insert them to the mysql :
for($i = 0; $i < sizeof($data['child_id']); $i++)
{
$result2 = $this->schedule_m->add_trans('transaction_schedule', $data, $result_id[0]['id']);
}
What should i do, so i can have an array of child_id in my $data array? (nested array)
And how to iterate through it?
UPDATE :
I have updated the codes above.
I use advanced rest client for testing, and i tried to post something like this in the form content type :
child_id=1&user_id=1&group_id=1&custom=&time=17%3A17%3A00&date=&child_id=2
Notice that theres two child_id (left most and right most), but only the last one (right most) is inserted.
And this is the add_trans in the model :
function add_trans($table, $data, $schedule_id) {
$query = $this->db->insert($table, array('child_id' => $data['child_id'], 'schedule_id' => $schedule_id));
return $query;
}
Thanks a lot for your time.

Answer 1

Even thought you set the name attribute as child[] on the markup,
You still need to call it as:
'child_id' => $this->post('child_id')
It will still return an array.
for($i = 0; $i < sizeof($data['child_id']); $i++) {
$result2 = $this->schedule_m->add_trans('transaction_schedule', $data, $result_id[0]['id']);
}
EDIT:
Looking upon you query string, that seems to be the culprit:
child_id=1&user_id=1&group_id=1&custom=&time=17%3A17%3A00&date=&child_id=2
^ same index , same index, same index, it will overwrite and you will get only `2`
If you want to get them all into an array format, you need to set them like this
child_id[]=1&user_id=1&group_id=1&custom=&time=17%3A17%3A00&date=&child_id[]=2
^ it needs to be set like this
UPDATE:
And in your model, if you want each id per row, well you can also loop in this case:
function add_trans($table, $data, $schedule_id) {
foreach($data['child_id'] as $child_id) {
$query = $this->db->insert($table, array('child_id' => $child_id, 'schedule_id' => $schedule_id));
}
// return $this->db->insert_id();
return $query;
}

Answer 2

ofcourse that won't work, it has to be
for($i = 0; $i < sizeof($data['child_id']); $i++)
{
$result2 = $this->schedule_m->add_trans('transaction_schedule', $data['child_id'][$i], $result_id[0]['id']);
}
because you've not set $data['child_id[]'] so it doesn't exist, the key is just a string or number, it does not validate or parse anything

Answer 3

you don't need to give child[] in post method. just give only child, it will get complete array what are you sending from views
replace
'child_id' => $this->post('child_id[]')
with
'child_id' => $this->post('child_id')