我正在尝试制作一个包含多个我需要分页的图库的照片库。
所以,这个变量
$galleries = Photograph::find_by_sql($sql);
拥有一个数组:
Array
(
[0] => Photograph Object
(
[id] =>
[gallery_name] => candies
)
[1] => Photograph Object
(
[id] =>
[gallery_name] => icecream
)
[2] => Photograph Object
(
[id] =>
[gallery_name] => pastries
)
[3] => Photograph Object
(
[id] =>
[gallery_name] => chocolate
)
)
(为方便起见我缩短了它)
我正在使用这两个变量来设置选定的图库:
$newest_gallery = reset($galleries);
$gallery_name = (isset($_GET['subj']) ? $_GET['subj'] : $newest_gallery->gallery_name);
我能够使用gallery_name设置选定的图库,但是,我无法对图库进行分页,因为我需要以某种方式将数组元素(包含gallery_name)的数字索引动态存储到变量中为了创建分页功能,因为我需要一个整数值来达到这个目的。 所以,我基本上需要获取数组元素的索引。有没有办法做到这一点?
答案 0 :(得分:0)
只需遍历您的图库数组并自行添加设置id的值:
$i = 0;
foreach($galleries as $gallery){
$gallery['id'] = $i;
$i++;
}
答案 1 :(得分:0)
如果我理解你的问题,你必须遍历数组:
## subj is set - search for it in the array of the objects
if (isset($_GET['subj'])) {
foreach ($galleries as $id => $gallery) {
if ($gallery->gallery_name == $_GET['subj']) {
## we've found a match - note the id and the name
$gallery_name = $_GET['subj'];
$gallery_id =$id;
break;
}
}
}
## if subj was not specified or we found no match in the array
if (!isset($gallery_id)) {
reset($galleries);
$gallery_id = key($galleries);
$gallery_name = $galleries[$gallery_id]->gallery_name;
}