Question

php foreach中赋值

$num=1;

$arr=array(
0 => (
'id' => '157'
'uid' => '9'
'active_id' => '157'
'num'=>$num)
1=>(
'id' => '157'
'uid' => '9'
'active_id' => '157'
'num'=>$num)
)如何用foreach在数组中加一元素‘‘num’’
foreach( $arr as $va){
foreach($va as $v){

$v['num']=$num;
}}
这样对吗？

Answer 1

foreach( $arr as &$va){
$va['num']=$num;
}

试试这样

Answer 2

foreach( $arr as $key=>$va){
    $arr[$key]['num']=$num;

}}