Question

我需要通过添加缺少的键和值来修改数组中的每个用户对象 - ＆＃34;

目前我有一个while循环，它将每个新值列入数组，名为＆＃34; Headers＆＃34;并抓住每个物体并将它们放入用户＆＃34;阵列。

$headers = array("Firstname", "Lastname", "Email", "Age");
$users = array(
array(
"id" => 32,
"user" => "{ 
   Firstname: 'John', 
   Lastname: 'Smith',
   Email: 'example@pleasehelp.com' 
 }
),
array(
"id" => 32,
"user" => "{
 Firstname: 'Josh', 
 Lastname: 'Pellow', 
 Age: '22' 
}
)
);

我想要这个：

$users = array(
array(
"id" => 32,
"user" => "{ 
   Firstname: 'John', 
   Lastname: 'Smith',
   Email: 'example@pleasehelp.com',
   Age: '-'
 }
),
array(
"id" => 32,
"user" => "{
 Firstname: 'Josh', 
 Lastname: 'Pellow',
 Email: '-', 
 Age: '22' 
}
)
);

每个用户对象应包含Headers数组中带或不带值的每个值。

Answer 1

<?php

$headers = array("Firstname", "Lastname", "Email", "Age");
$users = array(
    array(
        "id" => 32,
        "user" => array(
   'Firstname'=> 'John',
   'Lastname'=> 'Smith',
   'Email'=> 'example@pleasehelp.com'
 )
),
array(
"id" => 32,
    "user" => array(
        'Firstname'=> 'Josh',
        'Lastname'=> 'Pellow',
        'Age'=> '22'
    )
));
echo '<pre>';


$i=0;
$newArray=array();
foreach($users as $row){
    (isset($row['user']['Firstname']) ? $newArray[$i]['Firstname']= $row['user']['Firstname'] : $newArray[$i]['Firstname']='-');
    (isset($row['user']['Lastname']) ? $newArray[$i]['Lastname']= $row['user']['Lastname'] : $newArray[$i]['Lastname']='-');
    (isset($row['user']['Email']) ? $newArray[$i]['Email']= $row['user']['Email'] : $newArray[$i]['Email']='-');
    (isset($row['user']['Age']) ? $newArray[$i]['Age']= $row['user']['Age'] : $newArray[$i]['Age']='-');
    $i++;

}

print_r($newArray);

输出是：

Array
(
    [0] => Array
        (
            [Firstname] => John
            [Lastname] => Smith
            [Email] => example@pleasehelp.com
            [Age] => -
        )

    [1] => Array
        (
            [Firstname] => Josh
            [Lastname] => Pellow
            [Email] => -
            [Age] => 22
        )

)

Answer 2

我明白了。我所要做的就是循环每个用户并检查 array_key_exists 中的标题值！

        foreach($users as $user){
            //get user from user row
            $row = $user['user'];
            //loop headers for each row
            foreach($headers as $header){

                //check if $header found in each row
                if (!array_key_exists($header,$row)){
                    //if not found
                    $row->$header = "-";
                }

            }
        }

w3school

检查对象是否具有来自其他阵列的特定键

2 个答案: