Differences between instanceof and is_a () in php _ PHP Tutorial

Difference between instanceof and is_a () in php. Differences between instanceof and is_a () in php in general, the instanceof and is_a () functions are the same in php. The difference is that some PHP versions discard is_a () next we will analyze the differences between instanceof and is_a () in php.

In general, the instanceof and is_a () functions in php are the same. The difference is that different PHP versions discard is_a (). let's analyze them in detail.

Both the instanceof operator and the is_a () method determine whether an object belongs to this class or whether the class is the parent class of this object (used to determine whether a PHP variable belongs to an instance of a certain class)

If yes, TRUE is returned. if not, FALSE is returned.

Differences:

The instanceof operator is introduced in PHP 5. Is_a () was used before, but is_a () was discarded and replaced with instanceof.

Note:

Since PHP 5.3.0, is_a () has been resumed.

Summary:

Currently, PHP5.0 + is widely used in PHP service environments, so try to use instanceof instead of is_a ()

To sum up, if you do not know your server environment, we recommend that you use instanceof to avoid unnecessary troubles.

Difference analysis between idea and is_a (). In general, the instanceof and is_a () functions in php are the same. The difference is that some PHP versions discard is_a () because of different PHP versions () below we...