我正在尝试制作一个照片库，其中列出了多个需要分页的画廊。
所以，这个变量
$galleries = Photograph::find_by_sql($sql);
保存一个数组：
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
)
)
(为了方便起见，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'] : $newest_gallery->gallery_name);
我能够使用 gallery_name 设置选定的图库，但是，我无法对图库进行分页，因为我需要以某种方式动态存储数组元素(保存gallery_name(的数字索引到变量中以创建分页函数，因为我需要一个整数值用于此目的。所以，我基本上需要获取数组元素的索引。有没有办法做到这一点？
如果我正确理解你的问题，你必须遍历数组：
## subj is set - search for it in the array of the objects
if (isset($_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;
}
只需遍历您的画廊数组并添加 自己设置 id 的值：
$i = 0;
foreach($galleries as $gallery){
$gallery['id'] = $i;
$i++;
}