In this article, we will introduce in detail the implementation methods for inheriting extends from PHP classes. I hope that new users will be able to improve their abilities in PHP programming for so long, there are a lot of project experiences,
Extends the PHP built-in exception handling class and php built-in exception handling. Extends the PHP built-in exception handling class. php built-in exception handling is in the try code block. you need to use the throw statement to throw an
It's been a long time coming out of work, but there's a lot of experience in the project, but when it comes to the bottom of things, it's often silent. Now the bottom of the project design is less and fewer, can be said to be really used is that a
PHP extends class inheritance code example:
? PHP
Class a{
public $x;
Public $y;
function __construct ($x=0, $y=0 ){
$this- > x = $x;
$this- > y = $y;
}
function Getx () {
return $this- > x;
}
function Gety () {
return
{extends}In template inheritance, you can use the {extends} tag within a child template to extend the parent template.1.{extends} must be placed on the first line of the template.2. If the child template is to extend the parent template with
class inheritance is important, and as a programmer it is essential to deal with him every day, but do you really know something? The following is seen from the official web site.
A class can inherit the methods and properties of another class in
Extends is inheriting a classMethods that can use the parent class after inheritanceYou can also override methods of the parent class
Implements is the implementation of multiple interfacesThe method of the interface is generally emptyMust be
We have introduced in this article the implementation of the PHP class inheritance extends, hopefully for beginners to improve their ability to program in the PHP language It's been a long time coming out of work, but there's a lot of experience
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