PHPjqueryajax实现即时聊天功能

//index.html

 
 
 
 
 
 
 
 
  
 
 
  
 
 
  
 发言 
 
 
 

data.php

 200,
                &＃39;time&＃39; => gmdate("s") ,
                &＃39;chat&＃39; => $chat,
            );
            echo json_encode($json);
            break;
            www . phprm . com
        case &＃39;while&＃39;:
            $oldsize = filesize($file);
            $newsize = filesize($file);
            while (true) {
                if ($oldsize != $newsize) {
                    $chat = file_get_contents($file);
                    $json = array(
                        &＃39;status&＃39; => 200,
                        &＃39;time&＃39; => gmdate("s") ,
                        &＃39;chat&＃39; => $chat,
                    );
                    echo json_encode($json);
                    exit;
                }
                clearstatcache();
                $newsize = filesize($file);
                usleep(10000);
            }
            break;
    }
}

send. php