Basics : Simple User Define Function Creation

Function is used to make your programming easy. It is used as per-defined functions. You just need to write code once and after that you just need to call the function at anywhere in your whole script.
Read this simple code and learn from it.

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 <?php  
      function hello() // Function starts from here. I made hello() function.  
      {  
           echo "Hello World"; // Here Function Detail   
      }  
      Hello(); // Don't forget to call the funtion.   
 ?>