In PHP, what is the purpose of the $this keyword?
- It refers to the current object
- It refers to the current class
- It refers to the parent class
- It refers to the static context
In PHP, the purpose of the $this keyword is to refer to the current object within a class. It is used to access the properties and methods of the object. The correct option is "It refers to the current object." The $this keyword is used to distinguish between the class's properties and local variables or parameters with the same name. For further details, refer to the PHP documentation on the $this keyword: http://php.net/manual/en/language.oop5.basic.php#language.oop5.basic.class.this
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