0

这个问题似乎应该在这里得到回答，但是我找不到它，可能是由于缺乏术语。希望其他处于相同情况的人可以从中受益。

我有一个数组 $post_item.(se below) 例如，我从中打印数据

$post_item->ID

有没有办法按照我打印的顺序获取哪个项目。换句话说，我想计算项目。

如果该项目是 ID 9 的项目，我想返回 0。如果是 ID 12 的项目，我想返回 1 等。

stdClass Object
    (
        [ID] => 9
        [post_author] => 1
        [post_date] => 2012-05-18 12:01:49
        [post_date_gmt] => 2012-05-18 12:01:49
        [post_content] => 
        [post_title] => barnbildarkiv
        [post_excerpt] => 
        [post_status] => inherit
        [comment_status] => open
        [ping_status] => open
        [post_password] => 
        [post_name] => barnbildarkiv
        [to_ping] => 
        [pinged] => 
        [post_modified] => 2012-05-18 12:01:49
        [post_modified_gmt] => 2012-05-18 12:01:49
        [post_content_filtered] => 
        [post_parent] => 0
        [guid] => http://dev.nuagency.se/wp-content/uploads/2012/05/barnbildarkiv.jpg
        [menu_order] => 0
        [post_type] => attachment
        [post_mime_type] => image/jpeg
        [comment_count] => 0
        [filter] => raw
    )
    stdClass Object
    (
        [ID] => 12
        [post_author] => 1
        [post_date] => 2012-05-18 12:02:00
        [post_date_gmt] => 2012-05-18 12:02:00
        [post_content] => 
        [post_title] => animals_hm_giftcards
        [post_excerpt] => 
        [post_status] => inherit
        [comment_status] => open
        [ping_status] => open
        [post_password] => 
        [post_name] => animals_hm_giftcards
        [to_ping] => 
        [pinged] => 
        [post_modified] => 2012-05-18 12:02:00
        [post_modified_gmt] => 2012-05-18 12:02:00
        [post_content_filtered] => 
        [post_parent] => 0
        [guid] => http://dev.nuagency.se/wp-content/uploads/2012/05/animals_hm_giftcards.jpg
        [menu_order] => 0
        [post_type] => attachment
        [post_mime_type] => image/jpeg
        [comment_count] => 0
        [filter] => raw
    )
    stdClass Object
    (
        [ID] => 63
        [post_author] => 1
        [post_date] => 2012-05-21 09:27:41
        [post_date_gmt] => 2012-05-21 09:27:41
        [post_content] => 
        [post_title] => wren-2
        [post_excerpt] => 
        [post_status] => inherit
        [comment_status] => open
        [ping_status] => open
        [post_password] => 
        [post_name] => wren-2
        [to_ping] => 
        [pinged] => 
        [post_modified] => 2012-05-21 09:27:41
        [post_modified_gmt] => 2012-05-21 09:27:41
        [post_content_filtered] => 
        [post_parent] => 62
        [guid] => http://dev.nuagency.se/wp-content/uploads/2012/05/wren-2.gif
        [menu_order] => 0
        [post_type] => attachment
        [post_mime_type] => image/gif
        [comment_count] => 0
        [filter] => raw
    )
4

1 回答 1

0

如果您想要“键”（0,1,2 ..），只需转换为数组

$arr = array();
foreach($objects as $key=>$val) { $arr[$key] = $val; }

foreach($arr as $key=>$val) {
   if ($val["ID"] == 9) { /* $key is 0,1,2.. */ }
}

也许对问题的更好解释会有所帮助。

于 2012-05-26T13:04:54.800 回答