work after disconnection

gistfile1.txt

function endOutput($endMessage){ 
    ignore_user_abort(true); 
    set_time_limit(0); 
    header("Connection: close"); 
    header("Content-Length: ".strlen($endMessage)); 
    echo $endMessage; 
    echo str_repeat("\r\n", 10); // just to be sure 
    flush(); 
} 

// Must be called before any output 
endOutput("thank you for visiting, have a nice day'); 

sleep(100); 
mail("you@yourmail.com", "ping", "i'm here");