call a static method inside a class

Question

how do i call a static method from another method inside the same class    this- gt staticMethod      or   this  staticMethod

User · Accepted Answer

self  staticMethod      More information about the Static keyword

User · Answer

This is a very late response  but adds some detail on the previous answers  When it comes to calling static methods in PHP from another static method on the same class  it is important to differentiate between self and the class name   Take for instance this code   class static test class       public static function test             echo  Original class n              public static function run  use self            if  use self                self  test              else                class   get called class                 class  test                        class extended static test class extends static test class       public static function test             echo  Extended class n            extended static test class  run true   extended static test class  run false     The output of this code is      Original class       Extended class   This is because self refers to the class the code is in  rather than the class of the code it is being called from    If you want to use a method defined on a class which inherits the original class  you need to use something like    class   get called class     class  function name

User · Answer

In the later PHP version self  staticMethod    also will not work  It will throw the strict standard error   In this case  we can create object of same class and call by object  here is the example  class Foo        public function fun1             echo  non-static                 public static function fun2             echo  new self - gt fun1

User · Answer

Let s assume this is your class   class Test       private  baz   1       public function foo                public function bar                  printf  baz    d n    this- gt baz              public static function staticMethod     echo  static method n         From within the foo   method  let s look at the different options    this- gt staticMethod      So that calls staticMethod   as an instance method  right  It does not  This is because the method is declared as public static the interpreter will call it as a static method  so it will work as expected  It could be argued that doing so makes it less obvious from the code that a static method call is taking place    this  staticMethod      Since PHP 5 3 you can use  var  method   to mean  lt class-of- var gt     this is quite convenient  though the above use-case is still quite unconventional  So that brings us to the most common way of calling a static method   self  staticMethod      Now  before you start thinking that the    is the static call operator  let me give you another example   self  bar      This will print baz   1  which means that  this- gt bar   and self  bar   do exactly the same thing  that s because    is just a scope resolution operator  It s there to make parent    self   and static   work and give you access to static variables  how a method is called depends on its signature and how the caller was called   To see all of this in action  see this 3v4l org output

[php] call a static method inside a class?

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