How to check xml object is empty or not in php - php

Question

if ($xml) {
$emailId = $xml->mail->id;
$mailPassword = $xml->mail->password;
if (!empty($emailId) && !empty($mailPassword)) {
$data['emailIdandPasswordCheck'] = 0;
}
}
this is a condition in which we are checking the values are empty or not but it is not working
in this id is empty and password is not empty.
but everytime xml object is coming in both id and password
because of this both the things are coming as non empty.
what check i can use to check xml object is empty or not?

Answer 1

You can use cast an array and you check the condition
$emailId = (array)$emailId;
$mailPassword = (array)$mailPassword;
if (!empty($emailId) && !empty($mailPassword) ){
}
OR
$emailId = (array)$emailId;
$mailPassword = (array)$mailPassword;
if (count($emailId)==0 && count($mailPassword)==0 ){
}

Answer 2

I think you want this:
if ($xml) {
$emailId = $xml->mail->id;
$mailPassword = $xml->mail->password;
if ( $emailId !=null && $emailId !="" && $mailPassword!=null && $mailPassword!="" ) {
$data['emailIdandPasswordCheck'] = 0;
}
}

Answer 3

Use isset() instead of empty()
if (!isset($emailId) && !isset($mailPassword)) {
$data['emailIdandPasswordCheck'] = 0;
}
OK. Here is what your code is doing.
$emailId = $xml->mail->id;
This sets null in $emailId if there is no value.
$mailPassword = $xml->mail->password;
And this sets null in $mailPassword if there is no value.
And your condition says
if emailId is non-empty and mailPassword is non-empty
And using empty always tells the conditions are true. Because empty returns true on null.
So instead using isset will solve the issue.
You can see the comparison table for further info.