I have a class called Person, with its getters and setters, and I want to know how I can return a List from Data Layer. In C# I use List and I can return the list, but in PHP I don't know how.
function AllPersons()
{
try
{
$objConn = new Connection();
$conn = $objConn ->Connect();
$sql = "SELECT * FROM PERSON";
$answer= mysqli_query($cn, $sql);
if(mysqli_num_rows($answer) > 0)
{
while($row = mysqli_fetch_array($answer))
{
/*here i want to do something like in C#
List<Person>listPerson;
listPerson.add(objPerson);*/
}
}
else
{
return null;
}
}
catch (Exception $e)
{
//FB::log("nada");
}
}
Create an array and fill it.
listPerson = [];
while($row = mysqli_fetch_array($answer)) {
listPerson[] = new Person($row);
}
In PHP arrays replace the use of Lists/Arrays you'd use in .NET. They're really flexible when it comes down to mutations.
In this case you'd probably approach it like:
...
$persons = array();
while($row = mysqli_fetch_array($answer))
{
// Using [] appends the content of $row to the $persons array.
$persons[] = $row;
}
...
Read more about the flexibility of PHPs arrays here.
List is a dimensionless array in C# (Can also be used in dimensional). The arrays in PHP also dimensionless. So you can use arrays.
...
$listPerson = array();
while($row = mysqli_fetch_array($answer))
{
$listPerson[] = objPerson;
}
...