PHP Calling another class method

Question

I m still learning OOP so this might not even be possible  although I would be surprised if so   I need some help calling another classes method   For example in ClassA I have this method   function getName         return  this- gt name      now from ClassB  different file  but in the same directory   I want to call ClassA s getName    how do I do that  I tried to just do an include   but that does not work   Thanks

User · Accepted Answer

file1 php  lt  php  class ClassA      private  name    John       function getName             return  this- gt name              gt     file2 php  lt  php    include   file1 php        class ClassB            function   construct                       function callA                  classA   new ClassA            name    classA- gt getName           echo  name       Prints John                  classb   new ClassB        classb- gt callA      gt

User · Answer

You would need to have an instance of ClassA within ClassB or have ClassB inherit ClassA  class ClassA       public function getName           echo  this- gt name           class ClassB extends ClassA       public function getName           parent  getName              Without inheritance or an instance method  you d need ClassA to have a static method  class ClassA     public static function getName         echo  Rawkode           --- other file ---  echo ClassA  getName     If you re just looking to call the method from an instance of the class   class ClassA     public function getName         echo  Rawkode           --- other file ---   a   new ClassA    echo  a- gt getName      Regardless of the solution you choose  require  ClassA php is needed

User · Answer

If they are separate classes you can do something like the following   class A       private  name       public function   construct                  this- gt name    Some Name              public function getName                 return  this- gt name           class B       private  a       public function   construct A  a                 this- gt a    a             function getNameOfA                 return  this- gt a- gt getName              a   new A     b   new B  a     b- gt getNameOfA      What I have done in this example is first create a new instance of the A class  And after that I have created a new instance of the B class to which I pass the instance of A into the constructor  Now B can access all the public members of the A class using  this- gt a   Also note that I don t instantiate the A class inside the B class because that would mean I tighly couple the two classes  This makes it hard to    unit test your B class swap out the A class for another class

User · Answer

File 1  class ClassA        public  name    A        public function getName            return  this- gt name             File 2  include  file1 php    class ClassB        public  name    B        public function getName            return  this- gt name             public function callA             a   new ClassA            return  a- gt getName               public static function callAStatic             a   new ClassA            return  a- gt getName               b   new ClassB    echo  b- gt callA    echo  b- gt getName    echo ClassB  callAStatic

[php] PHP: Calling another class' method

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