我有一些PHP代碼..<?php  $artist = $_GET['artist'];  $title = $_GET['title'];  $r = fopen("temp_title.txt", "w");  fwrite($r, $artist." <b>|</b> ".$title);  fclose($r);?>我想添加另一個(gè)fwrite具有不同變量的變量，但它會(huì)顯示一段時(shí)間，從晚上 11 點(diǎn)到早上 7 點(diǎn)。像這樣：<?php  $artist = $_GET['artist'];  $title = $_GET['title'];  $info = "Night Mode";  $r = fopen("temp_title.txt", "w");  fwrite($r, $artist." <b>|</b> ".$title);  fwrite($r, $info); //This will be shown only in time of 11pm - 7pm  fclose($r);?>在那之后，fwrite應(yīng)該再次顯示前一個(gè)..