asked on

object is the same as className

<?php
class HelloWorld{
  public function sayHelloTo($name){
    return 'Hello '.$name;
  }
}

$obj=new HelloWorld();
//$reflectionMethod=new ReflectionMethod('HelloWorld','sayHelloTo');
$reflectionMethod=new ReflectionMethod($obj,'sayHelloTo');
echo $reflectionMethod->invoke(new HelloWorld(),'Mike');

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please explain why
//$reflectionMethod=new ReflectionMethod('HelloWorld','sayHelloTo');
$reflectionMethod=new ReflectionMethod($obj,'sayHelloTo');

are the same

Julian Hansen

The answer is in the documentation for ReflectionMethod
http://www.php.net/manual/en/reflectionmethod.construct.php

 class
    Classname or object (instance of the class) that contains the method.

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In other words the constructor for the Reflection method can take either

- The name of a class
OR
- An already instantiated (object) instance of a class
The commented out line above does the former - it passes the class name in as a string. The ReflectionMethod constructor recognises it is a string and will automatically create an object of that class type.
If it is an object (as in the second line) then it will simply use that object.

rgb192

ASKER

Ok so in all the examples of php: is 'className' same as $obj?
Or is the reflection documentation saying it will take either

ASKER CERTIFIED SOLUTION

Julian Hansen

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rgb192

ASKER

Thanks for example of what is in reflection class

Julian Hansen

You are welcome - thanks for the points.