Source Code : Build and then call a function

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Build and then call a function

 
<?php

  function helloworld (){
    echo "Hello World!<br />";
  }

  helloworld();
  
  function saysomething ($something){
    echo $something . "<br />";
  }
  Saysomething ("Hello World!"); //This would output "Hello World!"

  function addvalues ($firstvalue, $secondvalue){
    return $firstvalue + $secondvalue;
  }
  $newvalue = addvalues (1,3); 
  echo $newvalue; 

?>
  
  

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