Seven syntax descriptions in PHP classes _php tutorial

Seven syntax descriptions in the PHP class

Seven syntax descriptions in a class

-Properties
-Static properties
-Method
-Static method
-Class constants
-Constructor function
-destructor

  ';        }//static method public static function Static_stufunction () {echo ' static_function ', ';            }//constructor automatically calls public function __construct ($stu _name) {$this->stu_name = $stu _name when creating an object;        Echo ' __construct ', ';        }//destructors automatically call public function __destruct when destroying objects () {echo ' __destruct ', ';    }}//Instantiate class object $object = new Student (' Tom ');    Object Invocation Properties Echo $object->stu_name, ";    Object call static Property echo $object:: $stu _num, ";    Class Call Static property Echo Student:: $stu _num, ';    Use objects to invoke methods and static methods $object->stufunction (), respectively;    $object->static_stufunction ();    $object:: Stufunction ();    $object:: Static_stufunction ();    Use classes to invoke methods and static methods Student::stufunction (), respectively;    Student::static_stufunction (); Class Call class constant echo student::student, ';

Summarize:

objects can call properties and static properties, and classes can only invoke static properties.

objects can call methods and static methods, and classes can call methods and static methods.

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