error is showing in my view codeigniter - php

Question

I have a error on my view which I am trying to work out why but not know how to fix.
A PHP Error was encountered
Severity: Warning
Message: in_array() expects parameter 2 to be array, boolean given
What would be the best method to fix this I think it has something to do with my post permission[access] on controller that's effecting view.
View
<div class="form-group">
<label class="col-sm-2 control-label">Access Permission</label>
<div class="col-sm-10">
<div class="well well-sm" style="height: 200px; overflow: auto;">
<?php foreach ($permissions as $permission) { ?>
<div class="checkbox">
<label>
<?php if (in_array($permission, $access)) { ?>
<input type="checkbox" name="permission[access][]" value="<?php echo $permission; ?>" checked="checked" />
<?php echo $permission; ?>
<?php } else { ?>
<input type="checkbox" name="permission[access][]" value="<?php echo $permission; ?>" />
<?php echo $permission; ?>
<?php } ?>
</label>
</div>
<?php } ?>
</div>
<a onclick="$(this).parent().find(':checkbox').prop('checked', true);">Select All</a> / <a onclick="$(this).parent().find(':checkbox').prop('checked', false);">Unselect All</a></div>
</div>
Controller Function
public function getForm() {
$data['title'] = "Users Group";
$this->load->model('admin/user/model_user_group');
$id = $this->uri->segment(4);
if (isset($id) && $this->input->server('REQUEST_METHOD') != 'POST') {
$user_group_info = $this->model_user_group->getUserGroup($id);
}
$ignore = array(
'admin',
'dashboard',
'filemanager',
'login',
'menu',
'register',
'online',
'customer_total',
'user_total',
'chart',
'activity',
'logout',
'footer',
'header'
);
$data['permissions'] = array();
$files = glob(FCPATH . 'application/modules/admin/controllers/*/*.php');
foreach ($files as $file) {
//$part = explode('/', dirname($file));
$permission = basename(strtolower($file), '.php');
if (!in_array($permission, $ignore)) {
$data['permissions'][] = $permission;
}
}
if (null !==($this->input->post('permission[access]'))) {
$data['access'] = $this->input->post('permission[access]');
} elseif ($user_group_info['permission']['access']) {
$data['access'] = $user_group_info['permission']['access'];
} else {
$data['access'] = array();
}
$this->load->view('template/user/users_group_form.tpl', $data);
}

Answer 1

I belive the problem lies in your controller, like you initially said. Try this:
In your controller, replace this:
if (null !== $this->input->post('permission[access]')) {
$data['access'] = $this->input->post('permission[access]');
} elseif ($user_group_info['permission']['access']) {
$data['access'] = $user_group_info['permission']['access'];
} else {
$data['access'] = array();
}
with this:
$permission_access = $this->input->post('permission');
if (isset($permission_access)) {
if (isset($permission_access['access'])) {
$data['access'] = $permission_access['access'];
} elseif ($user_group_info['permission']['access']) {
$data['access'] = $user_group_info['permission']['access'];
} else {
$data['access'] = array();
}
}