call_user_func ()

<?php
function GFG($value)
{
    echo "This is $value site.\n";
}
  
call_user_func('GFG', "GeeksforGeeks");
call_user_func('GFG', "Content");
  
?>
#--------------------------------------------------------------------------
#Output:
This is GeeksforGeeks site.
This is Content site.
polyglot orca