Question

在过去的四天里，这一直是我的斗争。我真的希望能够解决这个问题，不必在这里问，因为这是很多代码，但我担心我已经尝试过并试图减少问题，这就像我在追逐我的尾巴。我已经消除了尽可能多的代码 - 我可能已经消除了比我应该更容易看到的内容，所以请随意要求澄清。

概要：

我正在从Google日历中提取日历Feed并填充我自己的日历。我的日历添加了一些功能，其中我有一个“时间轴事件”数据库，就像在常规事件中发生特定天数（DaysFromEvent）的待办事项。

此cron将提取该Feed并在Google日历上搜索任何新事件并将其添加到数据库中。（这部分似乎应该正常工作）。 cron还会查看ModifiedInGoogle字段以查看事件是否已被修改，如果是，则更新数据库中的事件。这似乎也有效。关键是如果主事件被修改，那么我还需要查看数据库并提取与主事件关联的任何时间轴事件，并根据StartTime + DaysFromEvent

更改其开始时间

我认为我几乎有这个脚本这样做，但我似乎遇到了while声明中if循环的问题。

当我通过脚本运行修改过的事件时，我只能回应：echo "Event ID: ".$tempEventID. ", Promotional Time Line: ".$tempTimelineID.", Parent Event ID: ".$tempParentEventID."<br>";

我应该从while循环得到回音，但我不是。我为长话而道歉，甚至为长序代码道歉。我是新手，所以请保持温柔。：）

我准备放弃并聘请某人为我完成这项工作，因为我是一名音乐家而不是程序员！

if((int)$feed->totalResults>0)  { //checking if at least one event is there in this date range

    foreach ($feed as $event) { //iterating through all events and pulling all the info to assign the variables below.

        $UserID= "42";
        $eventDatabase = "events";  

        //Setting startDate and startTime and endDate and endTime
        $StartDate = $event->when[0]->startTime;
        $date = strtotime($StartDate);
        $StartDate = date('Y-m-d H:i:s',$date);
        $StartArray = explode(' ', $StartDate);
        $StartTime = $StartArray[1];
        $EndDate = $event->when[0]->endTime;
        $date = strtotime($EndDate);
        $EndDate = date('Y-m-d H:i:s',$date);
        $EndArray = explode(' ', $EndDate);
        $EndTime = $EndArray[1];  

        $ModifiedInGoogle = $event->updated->text;
        $GoogleID = $event->id;

        $EventName = stripslashes($event->title);
        $PromotionalTimeLine = "0";
        $ParentEventID = "NULL";
        $DaysFromEvent = "";


        //We are seeing if the Event is already in the database by looking for the googleID
        $query = "SELECT * FROM ".$eventDatabase. " WHERE GoogleID='$GoogleID'";
        $result = mysql_query($query);

        $row = mysql_fetch_array($result, MYSQL_ASSOC);

        //This loop UPDATES events if ModifiedInGoogle string is different than what is already in the database
        if($ModifiedInGoogle != $row['ModifiedInGoogle']){

            //Variables for modifying the timeline start time
            $ModifiedEventStartTime = $row['StartTime'];
            $tempParentEventID = $tempEventID = $row['EventID'];
            $tempTimelineID = $row['PromotionalTimeLine'];

            //THIS ECHOS AS I EXPECT IT SHOULD
            echo "Event ID: ".$tempEventID. ", Promotional Time Line: ".$tempTimelineID.", Parent Event ID: ".$tempParentEventID."<br>";

            //Updates main event when modified in google:
             mysql_query("UPDATE ".$eventDatabase." SET 
             EventName = '$EventName', 
             StartDate = '$StartDate', 
             StartTime = '$StartTime', 
             EndTime = '$EndTime', 
             EndDate = '$EndDate', 
             Description = '$Description', 
             AllDay = '$AllDay', 
             CreatedOn = '$CreatedOn', 
             GoogleID = '$GoogleID', 
             ModifiedInGoogle = '$ModifiedInGoogle'

             WHERE GoogleID='$GoogleID' ");

            //Query to select the timeline events that have the same ParentEvenID-this is where everything seems to start falling apart...
            $query = "SELECT * FROM events WHERE ParentEventID='.$tempParentEventID.' AND GoogleID IS NULL";
            $tempresult = mysql_query($query);

        while($row = mysql_fetch_array($tempresult, MYSQL_ASSOC)){

            $tempEventID = $row['EventID'];
            $tempDaysFromEvent = $row['DaysFromEvent'];
            $tempStartDate = $row['StartDate'];

            //THIS LINE IS NOT ECHOING
            echo "EventID: ".$tempEventID.", Start Date: ".$tempStartDate.", Days From Event: ".$tempDaysFromEvent.", Parent Event ID: ".$row['ParentEventID']."<br>";

            //IF STARTDATE IS DIFFERENT FROM HOW IT USED TO BE, UPDATE IT.
            list($year, $month, $day) = explode("-", $tempStartDate);
            $tempStartDate      =   $tempEndDate    =    date("Y-m-d", mktime (0,0,0,$month,$day+$tempDaysFromEvent,$year));
            echo "TempStart Date:".$tempStartDate."<br>";

            //Query to update the startdate of the events
            mysql_query("UPDATE".$eventDatabase." SET
            StartDate = '$tempStartDate'
            WHERE EventID = $tempEventID
            ");
        }  //Closes While loop


        }  //This closes the update if modified if statement

    //This loop adds NEW EVENTS
    if (!mysql_num_rows($result)) {

    //Insert NEW EVENTS

    }
} //ends main event loop
} else  { 

  echo "No event found";
}

Answer 1

在行内

$query = "SELECT * FROM events WHERE ParentEventID='.$tempParentEventID.' AND GoogleID IS NULL";

您已包含单引号而非双精度数。你的意思是

$query = "SELECT * FROM events WHERE ParentEventID=".$tempParentEventID." AND GoogleID IS NULL";

或者可能没有点（如果你想保留分隔符）

$query = "SELECT * FROM events WHERE ParentEventID='$tempParentEventID' AND GoogleID IS NULL";

Answer 2

首先，跳出来的是while循环： while（$ row = mysql_fetch_array（$ tempresult，MYSQL_ASSOC））

为了使while循环继续，参数必须为“true”。我不太熟悉php，有些语言接受任何大于0的整数都不是假的，但这可能是错误的来源。

Answer 3

它说：

while($row = mysql_fetch_array($tempresult, MYSQL_ASSOC)){

不应该是：

while($row == mysql_fetch_array($tempresult, MYSQL_ASSOC)){

如果那不是意图，那么似乎有一些可疑的东西，因为你不会从某个动作中获得适当的价值，你需要某种查询。

而循环内部如果声明混乱

3 个答案: