数组对象去除重复的值
Array
(
[4968] => WP_Post Object
(
[ID] => 4968
[post_author] => 1
[post_date] => 2013-11-30 14:32:54
[post_date_gmt] => 2013-11-30 06:32:54
[post_content] =>
[post_title] => taibei
[post_excerpt] => 来到台北的日子
[post_status] => inherit
[comment_status] => open
[ping_status] => open
[post_password] =>
[post_name] => taibei
[to_ping] =>
[pinged] =>
[post_modified] => 2013-11-30 14:32:54
[post_modified_gmt] => 2013-11-30 06:32:54
[post_content_filtered] =>
[post_parent] => 4058
[guid] => http://tanteng-wordpress.stor.sinaapp.com/uploads/2013/01/taibei.jpg
[menu_order] => 0
[post_type] => attachment
[post_mime_type] => image/jpeg
[comment_count] => 0
[filter] => raw
)
[4951] => WP_Post Object
(
[ID] => 4951
[post_author] => 1
[post_date] => 2013-11-29 14:38:33
[post_date_gmt] => 2013-11-29 06:38:33
[post_content] =>
[post_title] => taipei
[post_excerpt] => 台北路的生活
[post_status] => inherit
[comment_status] => open
[ping_status] => open
[post_password] =>
[post_name] => taipei-3
[to_ping] =>
[pinged] =>
[post_modified] => 2013-11-29 14:38:33
[post_modified_gmt] => 2013-11-29 06:38:33
[post_content_filtered] =>
[post_parent] => 4058
[guid] => http://tanteng-wordpress.stor.sinaapp.com/uploads/2013/01/taipei.jpgpsid1
[menu_order] => 0
[post_type] => attachment
[post_mime_type] => image/jpeg
[comment_count] => 0
[filter] => raw
)
[4940] => WP_Post Object
(
[ID] => 4940
[post_author] => 1
[post_date] => 2013-11-28 12:53:08
[post_date_gmt] => 2013-11-28 04:53:08
[post_content] =>
[post_title] => 201304181305293855
[post_excerpt] =>
[post_status] => inherit
[comment_status] => open
[ping_status] => open
[post_password] =>
[post_name] => 201304181305293855
[to_ping] =>
[pinged] =>
[post_modified] => 2013-11-28 12:53:08
[post_modified_gmt] => 2013-11-28 04:53:08
[post_content_filtered] =>
[post_parent] => 4509
[guid] => http://tanteng-wordpress.stor.sinaapp.com/uploads/2013/09/201304181305293855.pngpsid1
[menu_order] => 0
[post_type] => attachment
[post_mime_type] => image/png
[comment_count] => 0
[filter] => raw
)
[4937] => WP_Post Object
(
[ID] => 4937
[post_author] => 1
[post_date] => 2013-11-28 09:55:07
[post_date_gmt] => 2013-11-28 01:55:07
[post_content] =>
[post_title] => wordpress-custom-query-string
[post_excerpt] =>
[post_status] => inherit
[comment_status] => open
[ping_status] => open
[post_password] =>
[post_name] => wordpress-custom-query-string
[to_ping] =>
[pinged] =>
[post_modified] => 2013-11-28 09:55:07
[post_modified_gmt] => 2013-11-28 01:55:07
[post_content_filtered] =>
[post_parent] => 4936
[guid] => http://tanteng-wordpress.stor.sinaapp.com/uploads/2013/11/wordpress-custom-query-string.jpg
[menu_order] => 0
[post_type] => attachment
[post_mime_type] => image/jpeg
[comment_count] => 0
[filter] => raw
)
[4931] => WP_Post Object
(
[ID] => 4931
[post_author] => 1
[post_date] => 2013-11-27 10:41:47
[post_date_gmt] => 2013-11-27 02:41:47
[post_content] =>
[post_title] => yming
[post_excerpt] =>
[post_status] => inherit
[comment_status] => open
[ping_status] => open
[post_password] =>
[post_name] => psb-1
[to_ping] =>
[pinged] =>
[post_modified] => 2013-11-27 10:41:47
[post_modified_gmt] => 2013-11-27 02:41:47
[post_content_filtered] =>
[post_parent] => 0
[guid] => http://tanteng-wordpress.stor.sinaapp.com/uploads/2013/11/psb-1.jpg
[menu_order] => 0
[post_type] => attachment
[post_mime_type] => image/jpeg
[comment_count] => 0
[filter] => raw
)
)
$st = array();
foreach($ar as $i=>$o) {
if(in_array($o->post_parent, $st)) unset($ar[$i]);
else $st[] = $o->post_parent;
}
$arr = array();
$comp = array_keys(array_unique(array_column($arr,'post_parent','id')));
foreach ($arr as $k=>$v){
if(! in_array($v['id'], $comp)) unset($arr[$k]);
}
print_r($arr);
