<code>$test=array(60) {
[0]=> object(stdClass)#14 (3) { ["id"]=> string(3) "609" ["title"]=> string(19) "Physical Mechanisms" ["publish_time"]=> string(10) "6 MAY 2016" }
[1]=> object(stdClass)#14 (3) { ["id"]=> string(3) "610" ["title"]=> string(20) "Engineering Substrate" ["publish_time"]=> string(10) "2 MAY 2016" }
...}
</code>依照publish_time對$test進行排序，怎麼做？請教！
<code>$test=array(60) {
[0]=> object(stdClass)#14 (3) { ["id"]=> string(3) "609" ["title"]=> string(19) "Physical Mechanisms" ["publish_time"]=> string(10) "6 MAY 2016" }
[1]=> object(stdClass)#14 (3) { ["id"]=> string(3) "610" ["title"]=> string(20) "Engineering Substrate" ["publish_time"]=> string(10) "2 MAY 2016" }
...}
</code>依照publish_time對$test進行排序，怎麼做？請教！
可以用php函數 usort 自訂排序
<code><?php
function _usort($a, $b) {
if ( strtotime($a->publish_time) < strtotime($a->publish_time) ) {
return -1;
} else if( strtotime($a->publish_time) > strtotime($a->publish_time) ){
return 1;
} else {
return 0;
}
}
usort($arr, '_usort');</code>
