CodeIgniter - foreach loop - php

Question

TL;DR
I'm trying to loop all the rows and output it with html. When I'm looping it, I get an array with the properties and values of a single row which is also the last row, when I do not loop it, I get 2 arrays (each array is a row) within an array. For some reason it doesn't loop it and display all the rows as it should, how do I fix this?
I'm trying to make a loop of sections and the articles within them, where as each article has a parent section.
In the database, there are 5 sections and 2 articles, article #1 has section #1 as it's parent and article #2 has section #2 as it's parent.
When print it as an array without looping it, I get the following array;
Array
(
[0] => Array
(
[s_id] => 1
[s_name] => News
[s_slug] => news
[s_visibility] => 1
[s_type] => 1
[s_status] => 1
[s_permission] => 0
[s_external] => 0
[s_location] => news
[s_color] => 1
[s_homepage] => 1
[a_id] => 1
[a_section] => 1
[a_title] => Ted Cruz’s ‘Secret’ Skill That No President Has Likely Had Since Thomas Jefferson
[a_description] => Apparently Cruz, whose famed 2013 marathon filibuster speech over defunding Obamacare jumped across a range of topics, has an uncanny capability to remember things he hears verbatim.
[a_content] => Apparently Cruz, whose famed 2013 marathon filibuster speech over defunding Obamacare jumped across a range of topics, has an uncanny capability to remember things he hears verbatim.
[a_views] => 0
[a_visibility] => 1
[a_date] => 17.11.2015
[a_author] => 1632422528
[a_category] => 1
[a_slug] =>
)
[1] => Array
(
[s_id] => 2
[s_name] => VOD
[s_slug] => vod
[s_visibility] => 1
[s_type] => 2
[s_status] => 1
[s_permission] => 0
[s_external] => 0
[s_location] => vod
[s_color] => 2
[s_homepage] => 1
[a_id] => 2
[a_section] => 2
[a_title] => GTA V PC Edition Released
[a_description] => Wondering where the score is? Our GTA Online review will remain scoreless, as a score does not properly reflect its continuously changing nature. Here's how and why we decided to do it this way.
[a_content] => Wondering where the score is? Our GTA Online review will remain scoreless, as a score does not properly reflect its continuously changing nature. Here's how and why we decided to do it this way.
[a_views] => 0
[a_visibility] => 1
[a_date] => 19.11.2015
[a_author] => 1632422528
[a_category] => 1
[a_slug] =>
)
)
But when I run it into a foreach loop, it outputs only a single array which is the later one (1).
I'm using CodeIgniter 3, the loop is inside a library called "Global_functions",
The model is "Functions_model".
Global_functions (only the related function, not the entire class because it contains other unrelated functions):
public function get_homepage_sections()
{
$getHomeData = $this->CI->functions_model->get_homepage_data();
foreach ($getHomeData as $get_sections)
{
switch ($get_sections['s_color'])
{
case 1:
$sectionColor = "blue";
break;
case 2:
$sectionColor = "purple";
break;
case 3:
$sectionColor = "orange";
break;
case 4:
$sectionColor = "green";
break;
default:
$sectionColor = "";
break;
}
$outputData = '
<li>
<div><h2 class="category ' . $sectionColor . '">' . $get_sections['s_name'] . '</h2></div>';
$outputData .= '
</li>';
}
return $get_sections;
}
Functions_model;
public function get_homepage_data()
{
$selected_columns = array(
'sections.s_id',
'sections.s_name',
'sections.s_slug',
'sections.s_visibility',
'sections.s_type',
'sections.s_status',
'sections.s_permission',
'sections.s_external',
'sections.s_location',
'sections.s_color',
'sections.s_homepage',
'articles.a_id',
'articles.a_section',
'articles.a_title',
'articles.a_description',
'articles.a_content',
'articles.a_views',
'articles.a_visibility',
'articles.a_date',
'articles.a_author',
'articles.a_category',
'articles.a_slug'
);
$query = $this->db->select( $selected_columns )
->from( config_item('sections') . ', ' . config_item('articles') )
//->join( config_item('articles'), 'articles.a_section = sections.s_id' )
->where( 'articles.a_section = sections.s_id' )
//->or_where( 'user_email', $user_string )
->get();
if ( $query->num_rows() >= 1 )
{
return $query->result_array();
}
}
Being called from the controller as follows (homepageSection);
public function index()
{
/* if ($this->require_role('admin')) {
echo $this->load->view('examples/page_header', '', TRUE);
echo '<p>You are logged in!</p>';
echo $this->load->view('examples/page_footer', '', TRUE);
}*/
// return $isAutoRememberMe;
//extra_for_auth();
// Call a function of the model
$data['getGlobalMessage'] = $this->global_functions->get_global_message();
$data['userOptions'] = $this->global_functions->extra_for_auth();
$data['homepageSection'] = $this->global_functions->get_homepage_sections();
//print_r ($data);
$this->parser->parse('template/header', $data);
$this->parser->parse('sections/homepage', $data);
$this->load->view('template/footer');
}
section/homepage file contains the call {homepageSection}, as you can see the parser is called and parses the file rather than loading it with view().

Answer 1

I think there is an error in get_home_sections()
instead of:
return $get_sections;
you should:
return $getHomeData
you are returning the last item from the array, that looks like the problem you stated.
Another point i see a little bit confusing is the var you are cummulating html.
$outputData is being reset in each loop, and you are not doing nothing with it. It's a good idea to initialize it at the begining of the funcion as empty string
$outputData = '';
and in the loop you should do an additive assingment with .=