pointer

Please help me these :

1. what is the exact use of the "main", as a pointer ?
2. What is it called in Javascript. so that I can search in google and learn more about it.
3. How can I implement these in PHP ?

Thank you.

<script>

function test()
{
 main:
  for(i=0; i <5; i++)
    {
   if(i == 1)
    continue main;
    document.write('in main'+'<br>');
   
     
  }
}

test();

</script>

Code (markup):

 

What are you trying to do?

 

I saw some js code something like that, now I know what is the use of it already. Thanks.
It's something like
continue [NUMBER];
in PHP.

 

Yeah, form SitePoint forums.