[英]PHP loop through multi-dimensional array
我目前在一个基于codeigniter构建的网站上工作,目前我正在查询数据,因为我认为可能有3个数组可以作为数组返回,每个数组的结果数量不一,我无法回答我的生活遍历了我目前拥有的阵列,
我的模特看起来像这样
public function get_special_backgrounds() {
$this->db->select('*');
$this->db->from('background');
$this->db->where('is_special', 1);
$query = $this->db->get();
return $query->result_array();
}
我的控制器
enter public function index() {
// $this->output->enable_profiler(TRUE);
$data = array();
if($query = $this->category_model->get_all_online()) {
$data['main_menu'] = $query;
}
$this->load->model('image_model');
/*
* Sort out the users backgrounds, basically do a check to see if there is a 'special' background
* if there is not a 'special' background then IF the user is logged in and has a background of there
* own show that one, if not show a generic one, if they are not logged in show a generic one
*/
$image = array();
if ($query = $this->image_model->get_special_backgrounds()) {
$image = $query;
}
$data = array_merge($data, $image);
die(print_r($data));
$this->load->view('home/main_page.php', $data);
}
获取返回的数组看起来像这样,
Array
(
[main_menu] => CI_DB_mysql_result Object
(
[conn_id] => Resource id #28
[result_id] => Resource id #35
[result_array] => Array
(
)
[result_object] => Array
(
)
[current_row] => 0
[num_rows] => 1
[row_data] =>
)
[special] => Array
(
[0] => Array
(
[background_id] => 6
[background_name] => Master-Backgrounds.png
[background_path] => /Users/Simon/Sites/mysite/media/uploads/backgrounds/
[is_special] => 1
[background_date_uploaded] => 1262687809
[users_user_id] => 1
[users_user_group_group_id] => 1
)
[1] => Array
(
[background_id] => 11
[background_name] => Master-mysite-Template.png
[background_path] => /Users/Simon/Sites/mysite/media/uploads/backgrounds/
[is_special] => 1
[background_date_uploaded] => 1262795313
[users_user_id] => 5
[users_user_group_group_id] => 2
)
)
)
1
它是一个对象,因此您不能像数组一样遍历它。 我确实看到了您正在尝试做的事情,并了解了为什么看起来这样有意义,但是要了解我在说什么,请尝试以下操作:
更改此:
public function get_special_backgrounds() {
$this->db->select('*');
$this->db->from('background');
$this->db->where('is_special', 1);
$query = $this->db->get();
return $query->result_array();
}
对此:
public function get_special_backgrounds() {
$this->db->select('*');
$this->db->from('background');
$this->db->where('is_special', 1);
$query = $this->db->get();
return $query;
}
和
更改此:
$image = array();
if ($query = $this->image_model->get_special_backgrounds()) {
$image = $query;
}
对此:
if($images = $this->image_model->get_special_backgrounds()) {
foreach($images->result_array() as $image) {
echo "<pre>";
print_r($image);
echo "</pre></br >";
}
}
您是否需要在数组的special
部分上循环?
foreach ( $data['special'] as $row ) {
// do stuff with the $row array
}
尝试foreach
$arr = (your array);
foreach ($arr as $key => $insideArrays) {
foreach ($insideArrays as $k2 => $insideInsideArrays){
..........
}
}
看起来像一个结果数组,开头是一个奇数元素。 我将摆脱第一个元素,然后循环遍历它:
array_shift($data);
foreach ($data as $row) {
// Do stuff with $row
var_dump($row);
}
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