今天努力！:
foreach($a as $key => $valueA){
$id = $valueA[*id*];
foreach($b as $keys => $valueB){
if($id == $valueB[*uid*]){
unset($a[$key]);
}
}
}
print_r($a);
$a = array(
'0'=>array('id'=>'1'),
'1'=>array('id'=>'2'),
'2'=>array('id'=>'3'),
);
$b = array(
'0'=>array('uid'=>'1'),
'1'=>array('uid'=>'2'),
);
$list = array();
foreach($b as $v){
$list[] = $v['uid'];
foreach($a as $k=>$v){
if(in_array($v['id'],$list)){
unset($a[$k]);
}
}
}
print_r($a);
