Question

php 二维数组转一维数组 ！！！

$arr => array(
0 => array('1'=>100,'2'=>200),
1 => array('1'=>50,'2'=>50)
);

转为一维数组

$arr1 => array(
0=>300,
1=>100,
);

Answer 1

//＝＝＝＝＝＝＝方法（不管是几维数组，都能全转为一维数组）＝＝＝＝＝＝＝＝
function arrayChange($a){
static $arr2;
foreach($a as $v)
{
if(is_array($v))
{
arrayChange($v);
}else{

$arr2[]=$v;
}
}

return $arr2;

}
//＝＝＝＝＝＝测试内容＝＝＝＝＝＝＝＝
$arr=array(
1=>"bb",
2=>array("cc","dd"),
3=>"cc",
);
$arr003=arrayChange($arr);
echo "<pre>";
print_r($arr003);

最后，求采纳

Answer 2

foreach($arr as $key=>$val){
$x=0;
foreach($val as $key1=>$val1){
$x+=$val1;
}
$arr1 [$key]=$x;
}