PHP嵌套数组获取特定键[重复]

Question

This question already has an answer here:

• How to get an array of specific “key” in multidimensional array without looping 4 answers

Array ( [0] => Array ( [totalprice] => 671 [total] => 0 [price_per_p] => 2 ) [1] => Array ( [totalprice] => 312 [total] => 0 [price_per_p] => 2 ) )

Trying to get "totalprice" from each array.

$i = 0;
foreach($arr as $x_values => $x) {
   echo $x[$i]["totalprice"];
   $i++;
}

But this doesn't work at all.

$arr = array(
            array(
                "totalprice" => "671",
                "total" => "0",
                "price_per_p" => 2,
            ),
            array(
                "totalprice" => "312",
                "total" => "0",
                "price_per_p" => 2,
            )
        );

I'd like to get from array 1 at first "loop" and array 2 at second "loop"

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Answer 1

Just remove $i index. No need $i variable.

//$i = 0;
foreach($arr as $x_values => $x) {
   echo $x["totalprice"];
   //$i++;
}