怎么合并数组相同的值
程序员文章站
2022-05-06 09:52:33
...
求大神指导,我想把数组相同的值合并,原本是这样的
array(5) {
[0] => array(1) {
["id"] => string(1) "2"
}
[1] => array(1) {
["id"] => string(1) "2"
}
[2] => array(1) {
["id"] => string(1) "1"
}
[3] => array(1) {
["id"] => string(1) "1"
}
}
我想要的效果是以下这样的
array(5) {
[0] => array(1) {
["id"] => string(1) "1"
}
[1] => array(1) {
["id"] => string(1) "2"
}
}
array(5) {
[0] => array(1) {
["id"] => string(1) "2"
}
[1] => array(1) {
["id"] => string(1) "2"
}
[2] => array(1) {
["id"] => string(1) "1"
}
[3] => array(1) {
["id"] => string(1) "1"
}
}
我想要的效果是以下这样的
array(5) {
[0] => array(1) {
["id"] => string(1) "1"
}
[1] => array(1) {
["id"] => string(1) "2"
}
}
回复讨论(解决方案)
$ar = array ( 0 => array ( "id" => "2" ), 1 => array ( "id" => "2" ), 2 => array ( "id" => "1" ), 3 => array ( "id" => "1" ),);$arr = array();foreach($ar as $v){ if(!isset($arr[$v['id']])) $arr[$v['id']] = $v;}ksort($arr);print_r(array_values($arr));