在PHP Select语句中将MYSQL时间从HH：MM：SS转换为HH：MM

问题描述：

I am using a PHP Select statement to pull data from MySQL. The eventTime field is stored as TIME in the schema as HH:MM:SS but I only want HH:MM. I have tried using TIME_FORMAT(eventTime, '%H:%i') in the select statement but it does not work. Any ideas? I have even tried to convert the variable in PHP but I am stumped. Please help me identify what I'm missing.

$query="SELECT id,eventDate,eventTime, eventName FROM specialevents ORDER BY eventDate,eventTime ASC";

$result=$mysqliConnection->query($query,MYSQLI_STORE_RESULT);

while($row =$result->fetch_object())
  {


     $id=$row->id;
     $eventDate=$row->eventDate;
     $eventTime=$row->eventTime;
     $eventName=$row->eventName;
     $reportTime=$row->reportTime;

 echo '<tr>’; 
 echo '<td class="tdId"><input type="text" class="tbId" value="' . $id . '"/></td>’; 
 echo '<td class="tdEventDate"><input type="text" class="tbEventDate" value="' . $eventDate . '"/></td>’; 
 echo '<td class="tdEventTime"><input type="text" class="tbEventTime" value="' . $eventTime . '"/></td>’; 
 echo '<td class="tdEventName"><input type="text" class="tbEventName" value=" ' . $eventTime . '"/></td>’; 
 echo '<td class="tdReportTime"><input type="text" class="tbReportTime" value=" ' . $reportTime . '"/></td>';   

}

我正在使用PHP Select语句从MySQL中提取数据。 eventTime字段在模式中以TIME存储为HH：MM：SS，但我只想要HH：MM。我尝试在select语句中使用TIME_FORMAT（eventTime，'％H：％i'），但它不起作用。有任何想法吗？我甚至试图在PHP中转换变量，但我很难过。请帮我确定一下我缺少的东西。 p>

  $ query =“SELECT id，eventDate，eventTime，eventName FROM specialevents ORDER BY eventDate，eventTime ASC”; 
 
 $ result = $ mysqliConnection-＆gt; query（  $ query，MYSQLI_STORE_RESULT）; 
 
而（$ row = $ result-＆gt; fetch_object（））
 {
 
 
 $ id = $ row-＆gt; id; 
 $ eventDate = $ row-  ＆gt; eventDate; 
 $ eventTime = $ row-＆gt; eventTime; 
 $ eventName = $ row-＆gt; eventName; 
 $ reportTime = $ row-＆gt; reportTime; 
 
 echo'＆lt; tr＆gt;  “;  
 echo'＆lt; td class =“tdId”＆gt;＆lt; input type =“text”class =“tbId”value =“'。$ id。'”/＆gt;＆lt; / td＆gt;';  
 echo'＆lt; td class =“tdEventDate”＆gt;＆lt; input type =“text”class =“tbEventDate”value =“'。$ eventDate。'”/＆gt;＆lt; / td＆gt;';  
 echo'＆lt; td class =“tdEventTime”＆gt;＆lt; input type =“text”class =“tbEventTime”value =“'。$ eventTime。'”/＆gt;＆lt; / td＆gt;';  
 echo'＆lt; td class =“tdEventName”＆gt;＆lt; input type =“text”class =“tbEventName”value =“'。$ eventTime。'”/＆gt;＆lt; / td＆gt;';  
 echo'＆lt; td class =“tdReportTime”＆gt;＆lt; input type =“text”class =“tbReportTime”value =“'。$ reportTime。'”/＆gt;＆lt; / td＆gt;';  
 
} 
  code>  pre> 
  div>

答

You shouldn't be storing date and time separately if they refer to the same entity. However, you can use MySQL's TIME_FORMAT() function to format your time:

TIME_FORMAT(date,format)
Formats the date value according to the format string.

$query="SELECT id, eventDate, TIME_FORMAT(eventTime, '%H:%i') AS eventTime, eventName 
FROM specialevents 
ORDER BY eventDate, eventTime ASC";

You can use the specifiers from DATE_FORMAT to format as you wish.

Also, the ASC sort order is default and can be omitted from your query.

答

In PHP (not sure on MySQL) you can do the following:

$formatted_date = date('H:i:s', strtotime($mysql_timedate));

答

Assuming you have column of type time The Php approach as follows :

$new_time = date('H:i', strtotime($mysql_timedate)); // mysql_timedate is the row containg time form the db and outout is hour:mins

Mysql approach :

$sql = "SELECT DATE_FORMAT(column name here, '%H:%i') FROM table name"; // output hour:mins

在PHP Select语句中将MYSQL时间从HH：MM：SS转换为HH：MM

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