PHP/MySQL將數據類型爲文本的時間戳轉換爲可用的日期格式

Question

我有一個頁面，允許用戶註冊一個定位日期和時間。我創建了錯誤檢查來檢查電子郵件地址是否存在於數據庫中。如果電子郵件地址確實存在，我會向學生髮出一條錯誤消息，說：「您已經註冊，您註冊了（」orientation_student表的時間戳與他們用於註冊的電子郵件地址相匹配「）。我的問題是：包含timestamp值的列有一個文本數據時間，我需要獲取與電子郵件地址匹配的時間戳，並以如下格式返回：「2012年10月2日星期二」。時間部分起作用，我可以'我的PHP代碼如下：相關的代碼大約在代碼中出現大約50行左右，在評論中寫道：「//代碼由Jason McCoy在2012年10月5日添加」非常感謝，傑森

PHP代碼

<?php 
// set the mode 
if(isset($_GET['p'])) $mode = $_GET['p']; 
else if(isset($_POST['p'])) $mode = $_POST['p']; 
else $mode = ''; 

// sanitize input 
if(isset($_GET['time_id'])) { 
    $timestamp = (int)$_GET['timestamp']; 
    $time_id = (int)$_GET['time_id']; 
} 
if(isset($_POST['time_id'])) { 
    $timestamp = (int)$_POST['timestamp']; 
    $time_id = (int)$_POST['time_id']; 
} 

// validate input 
$error = ''; 
if(date("G", $timestamp) != 0) 
    $error .= 'Invalid timestamp.<br/>'; 
if(($time_result = valid_time_id($time_id)) == false) 
    $error .= 'Invalid time id.<br/>'; 
else 
    $time_row = mysql_fetch_array($time_result); 

switch($mode) { 
    default: 
     break; 

    case "schedule": 
     // sanitize input 
     $first_name = sanitize_input($_POST['first_name']); 
     $last_name = sanitize_input($_POST['last_name']); 
     $email = sanitize_input($_POST['email']); 
     $retype_email = sanitize_input($_POST['retype_email']); 
     $college_id = sanitize_input($_POST['college_id']); 
     $retype_college_id = sanitize_input($_POST['retype_college_id']); 
     $phone = sanitize_input($_POST['phone']); 
     $first = (isset($_POST['first']) ? 1 : 0); 
     $verification = $_POST['verification']; 

     // validate input 
     $error = ''; 
     if(empty($first_name)) 
      $error .= 'You must enter a first name.<br>'; 
     if(empty($last_name)) 
      $error .= 'You must enter a last name.<br>'; 
     if(!valid_email($email)) 
      $error .= 'Invalid email.<br>'; 
     if($email != $retype_email) 
      $error .= 'The two email addresses don\'t match.<br>'; 
     // code added by Jason McCoy on October 5, 2012 
     // code used to check if the email address already exists in the database 
     // if email address exists, return an error message to the user 
     // **** DISPLAY THE DATE AND TIME THAT THE STUDENT SIGNED UP FOR USING THIS EMAIL ADDRESS **** 
     // **** THE STEP ABOVE HAS NOT BEEN COMPLETED AS OF OCT. 5TH, 2012 **** 
     $student_result = db_query("select id, timestamp, time_id from orientation_student where email='".$email."'"); 
     if(mysql_num_rows($student_result) > 0) { 
      $student_row = mysql_fetch_array($student_result); 
      $date_result = db_query("select timestamp from orientation_student where email='".$email."'"); 
      $time_result = db_query("select time from orientation_time where id='".$student_row['time_id']."'"); 
      $time_row = mysql_fetch_array($time_result); 
      $schedule_error .= 'You can only schedule an orientation once, and you are already scheduled for ' 
       .$formatted_date. ' at '.$time_row['time'].'. If you want to reschedule your test, ' 
       .'<a href="schedule.php?date='.$student_row['date'].'&time_id='.$student_row['time_id'] 
       .'">click here</a> to cancel the time you are scheduled for first.<br>'; 
      $error =. $schedule_error; 
     } 
     if(!valid_college_id($college_id)) 
      $error .= 'Invalid student id. Student id must contain seven digits including zeros.<br>'; 
     if($college_id != $retype_college_id) 
      $error .= 'The two student ids don\'t match.<br>'; 
     if(empty($phone)) 
      $error .= 'You must enter a phone number.<br>'; 
     $student_result = db_query("select id from ".$GLOBALS['db_pre']."student where canceled='0' and timestamp='".$timestamp."' and time_id='".$time_id."'"); 
     if(mysql_num_rows($student_result) >= $time_row['slots']) 
      $error .= 'Sorry, too many people are already scheduled for this time slot.<br>'; 
     if($_SESSION['captcha'] != $verification) 
      $error .= 'Invalid image verification.<br>'; 

     // if there's no error 
     if($error == '') { 
      // schedule it 
      db_query("insert into ".$GLOBALS['db_pre']."student set first_name='".$first_name 
       ."',last_name='".$last_name 
       ."',email='".$email 
       ."',college_id='".$college_id 
       ."',phone='".$phone 
       ."',timestamp='".$timestamp 
       ."',time_id='".$time_id 
       ."',unschedule_code='".md5(time()) 
       ."',inserted_at='".gmdate("Y-m-d H:i:s") 
       ."'"); 
      $student_id = mysql_insert_id(); 

      /* send email to student 
      $subject = "A-B Tech New Student Appointment Confirmation"; 
      if(current_site() == "orientation") $subject = "A-B Tech New Student Orientation"; 
      else $subject = "A-B Tech Campus Tour"; 
      $message = format_text("Scheduling Email", $student_id); 
      email($email, $subject, $message); 
      */ 

      // get the start and end times for the appointment 
      $time_result = db_query("select * from ".$GLOBALS['db_pre']."time where id='".$time_id."'"); 
      $time_row = mysql_fetch_array($time_result); 
      //$timestamp_start = strtotime(date("F j, Y", $timestamp).", ".$time_row['time']); 
      //$timestamp_end = strtotime("+1 hour", $timestamp_start); 

      /*// send email, with calendar attachment, to counselors 
      if(current_site() == "orientation") $subject = "A-B Tech New Student Orientation: "; 
      else $subject = "A-B Tech Campus Tour: "; 
      $subject .= date("F j, Y", $timestamp).", ".$time_row['time']."; ".$first_name." ".$last_name.""; 
      $message = "A student has scheduled an appointment:\r\n\r\n"; 
      $message .= "Name: ".$first_name." ".$last_name."\r\n"; 
      $message .= "Date: ".date("F j, Y", $timestamp).", ".$time_row['time']."\r\n"; 
      $message .= "Email: ".$email."\r\n"; 
      $message .= "Phone: ".$phone."\r\n"; 

      // send the email to all the counselors 
      $user_result = db_query("select * from user where no_email=0"); 
      while($user_row = mysql_fetch_array($user_result)) { 
       email($user_row['email'], $subject, $message); 
      }*/ 
     } 
     break; 
} 

// captcha image verification 
srand(time()); 
$_SESSION['captcha'] = substr(md5(rand(1,9999)), rand(1,15), 5); 
$_SESSION['captcha'] = str_replace("O", "1", $_SESSION['captcha']); // to avoid confusion 
$_SESSION['captcha'] = str_replace("o", "2", $_SESSION['captcha']); // ... 
$_SESSION['captcha'] = str_replace("0", "3", $_SESSION['captcha']); // ... 

// the top layout 
layout_top(date("F j, Y", $timestamp).', '.$time_row['time']); 

// the middle layout 
switch($mode) { 
    default: 
     if($mode == "schedule" && $error == "") { 
      echo display_text("Scheduling Text", $student_id); 
      ?><p><a href="index.php">Click here to go back</a></p><?php 
     } else { 
      ?> 
      <h1 align="center" style="padding-bottom: 0; margin-bottom: 0;"><?=strtoupper(date("F j, Y", $timestamp).' '.$time_row['time'])?></h1> 
      <p align="center" style="padding-top: 0; margin-top: 0;"><strong><a href="index.php?month=<?=date("n", $timestamp)?>&year=<?=date("Y", $timestamp)?>">choose another date</a></strong></p> 

      <?php if($mode == "schedule" && $error != '') { ?> 
      <p class="error"><?=$error?></p> 
      <?php } ?> 

      <form action="<?=$_SERVER['PHP_SELF']?>" method="post"> 
      <input type="hidden" name="p" value="schedule"> 
      <input type="hidden" name="timestamp" value="<?=$timestamp?>"> 
      <input type="hidden" name="time_id" value="<?=$time_id?>"> 
      <fieldset> 
      <legend>Schedule an appointment for this date</legend> 
      <p>Fill out this form to schedule a New Student appointment on this date. Make sure you use a valid email address.</p> 
      <ul> 
       <li> 
        <label for="first_name">First Name</label> 
        <input type="text" name="first_name"<?=($mode == "schedule" ? ' value="'.$first_name.'"' : '')?>> 
       </li> 
       <li> 
        <label for="last_name">Last Name</label> 
        <input type="text" name="last_name"<?=($mode == "schedule" ? ' value="'.$last_name.'"' : '')?>> 
       </li> 
       <li> 
        <label for="email">Email</label> 
        <input type="text" name="email" size="30"<?=($mode == "schedule" ? ' value="'.$email.'"' : '')?>> 
       </li> 
       <li> 
        <label for="retype_email">Retype Email</label> 
        <input type="text" name="retype_email" size="30"<?=($mode == "schedule" ? ' value="'.$retype_email.'"' : '')?>> 
       </li> 
       <li> 
        <label for="college_id">Student ID(For your student ID#, please refer to the e-mail you received regarding your A-B Tech WebAdvisor and Email Accounts.)</label> 
        <input type="text" name="college_id" size="30"<?=($mode == "schedule" ? ' value="'.$college_id.'"' : '')?>> 
       </li> 
       <li> 
        <label for="retype_college_id">Retype Student ID</label> 
        <input type="text" name="retype_college_id" size="30"<?=($mode == "schedule" ? ' value="'.$retype_college_id.'"' : '')?>> 
       </li> 

       <li> 
        <label for="phone">Phone</label> 
        <input type="text" name="phone"<?=($mode == "schedule" ? ' value="'.$phone.'"' : '')?>> 
       </li> 
       <li> 
        <label for="verification">Verification</label> 
        <img src="../images/verify.php" width="180" height="40" alt="Verification"><br/> 
        <input type="text" name="verification" size="10"> <small>&laquo; type the characters in the image above into this box</small> 
       </li> 
       <li> 
        <input type="submit" value="Submit"> 
       </li> 
      </ul> 
      </fieldset> 
      </form> 
      <?php 
     } 
     break; 
} 

// the bottom layout 
layout_bottom(); 
?> 

Answer 1

在數據庫中的時間戳看起來像UNIX秒，所以嘗試：

$formatted_date=date("l, d/m/Y", $timestamp); 

更多關於date()格式選項here。