Post-binding in PHP

: This article mainly introduces PHP later binding. For more information about PHP tutorials, see. Let's take a look at an example:

Output:

A

If post-binding is used:

Output:

B

The use of self: or the static reference of the CLASS to the current CLASS depends on the CLASS where the current method is defined, rather than the CLASS where the caller is located.

"Post-binding" means that static: is not resolved to define the class of the current method, but calculated during actual operation. It can also be called "static binding" because it can be used (but not limited)Static method.

The above introduces the post-binding in PHP, including the static method content, and hopes to be helpful to friends who are interested in PHP tutorials.