如何使用 PHP 访问 JSON 对象的键，该键是数组中同一位置的电子邮件或电话号码？

Question

I made a signup where you can signup with either email or phone number, and the system will only store either. The way I do it:

if ( fnCheckEmailFormat ( $sNewUserEmail ) ) {          // call the function which checks if is a valid email
     $jNewUser->email = $_POST['txtEmailorPhoneNumber']; // then assign an email key to the object user
} 
else if ( fnCheckDigitFormat ( $sNewUserPhoneNumber ) ) {  // call the function which checks that it should only contain                                                                     digits
        $jNewUser->phonenumber = $_POST['txtEmailorPhoneNumber']; // then assign a phonenumber key to the object user
}

The functions which detects the different formats:

function fnCheckEmailFormat ( $sNewUserEmail ){ //checks if the email is a valid email format
    $sNewUserEmail = $_POST['txtEmailorPhoneNumber'];
    if ( !filter_var( $sNewUserEmail, FILTER_VALIDATE_EMAIL ) ){
        return false; // returns false if its not valid. Then it wont run the if.
    }
    return true; // else it will run the signin.
}

function fnCheckDigitFormat ( $sNewUserPhoneNumber ){ //checks if the phonenumber it conatains only digits
    $sNewUserPhoneNumber =  $_POST['txtEmailorPhoneNumber'];
    if ( !preg_match( "/^[0-99]+$/", $sNewUserPhoneNumber ) ){
        return false; // returns false if its not valid. Then it wont run the if.
    }
    return true; // else it will run the signin.
}

So my text file will look the following:

[
    {
        "role": "admin",
        "id": "59df4ef2d8d39",
        "email": "a@a.dk",
        "name": "A",
        "lastname": "A",
        "password": "1",
        "image": "img_webshop\/userimage-59dfb91515810.png"
    },
    {
        "role": "user",
        "id": "59df4f1b070e6",
        "phonenumber": "12345678",
        "name": "B",
        "lastname": "B",
        "password": "2",
        "image": "img_webshop\/userimage-59e37de69475b.png"
    },
    {
        "role": "user",
        "id": "59dfc0cb07985",
        "email": "c@c.dk",
        "name": "C",
        "lastname": "C",
        "password": "3",
        "image": "img_webshop\/userimage-59dfc0cb06c5f.png"
    },
    {
        "role": "user",
        "id": "59dfc22f26f78",
        "phonenumber": "87654321",
        "name": "D",
        "lastname": "D",
        "password": "4",
        "image": "img_webshop\/userimage-59dfc22f2638d.png"
    },

]

Now my question is when I am editing the account how can I grab the email or phonenumber key as one and assign a new value to it ( again it can be an email or a phonenumber? For example $ajUsers[$i]-> ? = $sNewUserEmailorPhoneNumber; I hope it´s understandable what I want.

Answer 1

first of all, I advise you to refactor your code, you should not be using the POST data in your format check functions

if ( fnCheckEmailFormat ( $_POST['txtEmailorPhoneNumber'] ) ) {          // call the function which checks if is a valid email
     $jNewUser->email = $_POST['txtEmailorPhoneNumber']; // then assign an email key to the object user
} 
else if ( fnCheckDigitFormat ( $_POST['txtEmailorPhoneNumber'] ) ) {  // call the function which checks that it should only contain                                                                     digits
        $jNewUser->phonenumber = $_POST['txtEmailorPhoneNumber']; // then assign a phonenumber key to the object user
}

even better you would have two methods on your object something like:

public function setIdentifyingAttribute($emailOrPhone){....}
public function getIdentifyingAttribute(){....}