php - 如何大写子数组键的第一个字符

Question

Array
(
[Carriers] => Array
    (
        [Carrier] => Array
            (
                [0] => Array
                    (
                        [carriersid] => a2e01423-2e8f-4458-8c13-2bfd08591d75
                        [phonenumber] => 1234567890
                        [network] => CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
                        [wireless] => True
                        [zipcode] => 92675
                        [city] => Capistrano Valley
                        [price] => 3.0000
                        [createddate] => 2016-02-19 06:18:56
                    )

我想将 [carriersid] 大写为 Carriersid。我知道 array_change_key_case 函数在那里，但它只使键要么大写要么小写。任何帮助深表感谢。:)

Answer 1

试试这个，它将使第一个字母大写

<?php
    $arr = ['asd'=> '123', 'sdf' => '444'];
    $data = [];
    foreach ($arr as $key => $val) {
       $data[ucfirst($key)] = $val;
    }
    print_r($data);
?>

Answer 2

如果您想要这样的 CarrieSid 也可以使用以下解决方案，否则请使用 Rahul 发布的代码 -

$carrier_arr = $arr['Carriers']['Carrier'];

$final_arr = array();

for($i=0;$i<count($carrier_arr);$i++){

$final_arr[$i]['Carriersid'] =  $carrier_arr[$i]['carriersid'];
$final_arr[$i]['Phonenumber'] =  $carrier_arr[$i]['phonenumber'];
$final_arr[$i]['Network'] =  $carrier_arr[$i]['network'];
$final_arr[$i]['Wireless'] =  $carrier_arr[$i]['wireless'];
$final_arr[$i]['Zipcode'] =  $carrier_arr[$i]['zipcode'];
$final_arr[$i]['City'] =  $arr[$i]['city'];
$final_arr[$i]['Price'] =  $carrier_arr[$i]['price'];
$final_arr[$i]['Createddate'] =  $carrier_arr[$i]['createddate'];

}

Answer 3

这可以帮助您更改数组首字母大写的键

<?php    
    foreach ($arr as $key => &$val) {
        $val = ucfirst($val);
    }
    ?>