What are the different ways where we can use object operators->
in PHP?
PHP has two object operators.
The first,->
, is used when you want to call a method on an instance or access an instance property.
The second, , is used when you want to call a
method, access a
static
variable, or call a parent class's version of a method within a child class.
When accessing a method or a property of an instantiated class
class SimpleClass
{
// property declaration
public $var = 'a default value';
// method declaration
public function displayVar() {
echo $this->var;
}
}
$a = new SimpleClass();
echo $a->var;
$a->displayVar();
Call a function:
$foo->bar();
Access a property:
$foo->bar = 'baz';
where$foo
is an instantiated object.
It is used when referring to the attributes of an instantiated object. e.g:
class a {
public $yourVariable = 'Hello world!';
public function returnString() {
return $this->yourVariable;
}
}
$object = new a();
echo $object->returnString();
exit();
"->" operator is the PHP related callable content. always use to call an instance method and access instance.
"::" scope operator is used for the instance that is used for calling the static method and constant it's very different with::
It's a proper reply to them, I have got new knowledge.
Please check the name conflicts for the above different operator.
Our community is visited by hundreds of web development professionals every day. Ask your question and get a quick answer for free.
Find the answer in similar questions on our website.
Do you know the answer to this question? Write a quick response to it. With your help, we will make our community stronger.
PHP (from the English Hypertext Preprocessor - hypertext preprocessor) is a scripting programming language for developing web applications. Supported by most hosting providers, it is one of the most popular tools for creating dynamic websites.
The PHP scripting language has gained wide popularity due to its processing speed, simplicity, cross-platform, functionality and distribution of source codes under its own license.
https://www.php.net/
Welcome to the Q&A site for web developers. Here you can ask a question about the problem you are facing and get answers from other experts. We have created a user-friendly interface so that you can quickly and free of charge ask a question about a web programming problem. We also invite other experts to join our community and help other members who ask questions. In addition, you can use our search for questions with a solution.
Ask about the real problem you are facing. Describe in detail what you are doing and what you want to achieve.
Our goal is to create a strong community in which everyone will support each other. If you find a question and know the answer to it, help others with your knowledge.