php 多维数组 求和,php – 从多维数组中获取值的总和

我真的需要帮助来获得我的数组的值的总和,我已经尝试研究如何解决这个问题PHP多维数组,但我最终得到的错误就像使用array_sum()但最终在array_sum中期望1个参数是数组,并且试过$value3 = $value3并得到一个结果但不正确,顺便说一下这里是我的代码：

var_export($_POST['guests']);

echo "

";

foreach($_POST['guests'] As $key1 => $value1){

foreach($value1 As $key2 => $value2){

foreach($value2 As $value3){

}

}

echo "Room Type: " . $key1 . " No. of Rooms: " . $key2 . " No. of Guest: " . array_sum($value3) . "

";

}

这是结果：

array ( 1 => array ( 2 => array ( 0 => '1', 1 => '2', ), ), 2 => array ( 1 => array ( 0 => '4', ), ), )

Warning: array_sum() expects parameter 1 to be array, string given in C:\xampp\htdocs\nation\reservation-form3.php on line 14

Room Type: 1 No. of Rooms: 2 No. of Guest:

Warning: array_sum() expects parameter 1 to be array, string given in C:\xampp\htdocs\nation\reservation-form3.php on line 14

Room Type: 2 No. of Rooms: 1 No. of Guest:

解决方法:

我想你想要这样

$_POST['guests'] = array (

// RoomType => ( RoomNum => ( GuestList

// though i don't understand why guests in room are array

// But no. of room can't be zero :)

1 => array ( 2 => array ( 0 => '1', 1 => '2', ), ),

2 => array ( 1 => array ( 0 => '4', ), ), );

echo "

";

foreach($_POST['guests'] As $key1 => $value1) // Loop with RoomType

foreach($value1 As $key2 => $value2) // Loop with RoomNum

echo "Room Type: " . $key1 .

" No. of Rooms: " . $key2 .

" No. of Guest: " . array_sum($value2) . "

";

结果

Room Type: 1 No. of Rooms: 2 No. of Guest: 3

Room Type: 2 No. of Rooms: 1 No. of Guest: 4

标签：php,arrays,multidimensional-array

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