TL; DR 我正在尝试循环所有行并使用html输出它。当我循环它时，我得到一个数组，其中包含单行的属性和值，这也是最后一行，当我不循环它时，我在数组中得到2个数组（每个数组是一行）。由于某种原因，它不会循环它并显示所有的行，我该如何解决这个问题？
我正在尝试创建一个循环的部分和文章，其中每篇文章都有一个父部分。 在数据库中，有5个部分和2个文章，第1条第1部分是第1部分，第2条第2部分是第2部分，因为它是父级。
当它作为数组打印而不循环时，我得到以下数组;
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] =>
)
)
但是当我将它运行到foreach循环中时，它只输出一个数组，这是后一个数组（1）。
我正在使用CodeIgniter 3，循环位于名为“Global_functions”的库中， 该模型是“Functions_model”。
Global_functions（只有相关函数，而不是整个类，因为它包含其他不相关的函数）：
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 $query->result_array();
}
}
从控制器调用如下（homepageSection）;
public function index()
{
/* if ($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文件包含调用{homepageSection}，因为您可以看到调用解析器并解析该文件而不是使用view（）加载它。
答案 0 :(得分：0)
我认为get_home_sections（）
中存在错误而不是：
return $get_sections;
return $getHomeData
你要从数组中返回最后一项，看起来就像你说的那样。
另一点我看到有点令人困惑的是你正在累积html的var。 $ outputData 正在每个循环中重置，而你没有做任何事情。在函数的开头将它初始化为空字符串是一个好主意 $ outputData =＆＃39;＆＃39;;
并且在循环中你应该使用。=
进行附加辅助