Let's talk about the usage of arrow symbol (->) in php

PHP arrow (->) is a symbol used for object access. In PHP, an object is a collection of properties and methods. Arrow symbols allow developers to access and manipulate these properties and methods.

In PHP, objects can be created by instantiating a class, and then using arrow notation to access the object's properties and methods. For example, here is a simple PHP class:

class Person {
   public $name;
   public $age;

   public function sayHello() {
      echo "Hello!";
   }
}

To access the properties or methods of this class, we need to instantiate an object first:

$person = new Person();

Now, we can access it through arrow symbols Properties and methods of this object:

echo $person->name;
$person->age = 30;
$person->sayHello();

In the above code, arrow symbols are used to access the properties $name and $age of the $person object, and the method sayHello().

It should be noted that arrow symbols can only be used to access the properties and methods of objects. If we want to access a static property or method of a class, we need to use two colons (::) instead of arrow symbols.

In PHP development, the arrow symbol is a very common symbol. Understanding its meaning and usage can help developers better understand and manipulate objects.

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