php interview questions for experienced candidates 2 years code example

Example 1: php interview questions for 2 year experience

<?php
if(empty($_POST['email'])){
  echo "The email cannot be empty";
}

$email = $_Post [‘email’]?? "The email cannot be empty";
?>

Example 2: php interview questions and answers for 2 years experience

$a = '1';
$b = &$a;
$b = "2$b";
echo $a.", ".$b;