PHP check for instance of DateTime?

Question

Is this the only way to check if an object is an instance of a class, in my case of the DateTime class?

$cls = ReflectionClass("DateTime");
if (! $cls->isInstance( (object) $var ) ) {
    // is not an instance
}

It seems a bit heavy to me.

Solution 1

You could try instanceof^­Docs...

if ($var instanceof DateTime) {
  // true
}

See also is_a^­Docs:

if (is_a($var, 'DateTime')) {
  // true
}

Solution 2

if ($var instanceof DateTime)

Solution 3

You can use get_class function like this:

<?php

    $a = new DateTime();
    if (get_class($a) == 'DateTime') {
        echo "Datetime";
    }

Solution 4

What about instanceof

View more solutions

Comments

[Niklas R]

Man, I didn't find anything about that one with google .. :/ Thank you!

[Chadwick Meyer]

@redolent If you are using Symfony or some other framework that uses namespaces, you may need to declare use \DateTime at the top of your file to make it look for DateTime in the root namespace (not your app's namespace).