php - 如何使用for循环使用php显示日期和时间？

Question

echo "<table class='hoverTable'  cellpadding=10 border=0 align=center style='border-collapse:collapse;width:500px'><tr  style='color:#FFF;background-color:#000; font-size:20px'><td align=center>Date</td><td align=center>Time</td><td align=center colspan=2 >Status</td></tr>";
	for($k=1;$k<=7;$k++)
	{
		if($k==1)
			$day='Monday';
		else if($k==2)
			$day='Tuesday';
		else if($k==3)
			$day='Wednesday';
		else if($k==4)
			$day='Thursday';
		else if($k==5)
			$day='Friday';
		else if($k==6)
			$day='Saturday';
		else	
			$day='Sunday';
		for($i=8; $i<17;$i++)
		{
			$time="$i:00";
			$j= $time+1;
			$endtime="$j:00";

			$sql=mysqli_query($con,"SELECT * FROM (SELECT TT_ID,TT_Subject FROM timetable WHERE TT_Day='$day' and L_ID='00106') AS TAB_1, (SELECT TT_ID,TT_Subject FROM timetable WHERE TT_Time='$time' OR TT_Endtime='$endtime') AS TAB_2 WHERE TAB_1.TT_ID = TAB_2.TT_ID ");
			if(mysqli_num_rows($sql)>0)
			{
				$rows=mysqli_fetch_assoc($sql);
				$sub=$rows['TT_Subject'];
				$runsql=mysqli_query($con,"SELECT * FROM subject WHERE S_Code='$sub'");
				{
					$result=mysqli_fetch_assoc($runsql);
					$subname=$result['S_Name'];
					echo "<tr bgcolor='#F5F6CE'><td>".$day."</td><td align=center style='font-size:15px; width:100px; color:#FF0000;'>".$time." - ".$endtime."</td><td>:</td><td align='center' style='font-size:15px; height:40px; color:#FF0000;' title='Subject: $subname'  >Not Available</td>   ";             
				}
			}
			else
				echo "<tr bgcolor='#F5F6CE'><td>".$day."</td><td align=center style='font-size:15px; width:100px; color: #0000FF;'>".$time." - ".$endtime."</td><td style='width:10px;'>:</td><td align='center' style='font-size:15px; height:40px;'><a href='add_timetable.php'>Available</a></td>";      
		}
		echo "</tr>";
	}

我想使用循环来显示数据库中的数据。我成功显示数据但界面不是我想要的（有颜色的表格）。你能教我如何显示如下图所示的表格吗？

<?php
	echo "<table class='hoverTable'  cellpadding=10 border=0 align=center style='border-collapse:collapse;width:500px'><tr  style='color:#FFF;background-color:#000; font-size:20px'><td align=center>Date</td><td align=center>Time</td></tr>";
	for($k=1;$k<=7;$k++)
	{
		if($k==1)
			$day='Monday';
		else if($k==2)
			$day='Tuesday';
		else if($k==3)
			$day='Wednesday';
		else if($k==4)
			$day='Thursday';
		else if($k==5)
			$day='Friday';
		else if($k==6)
			$day='Saturday';
		else	
			$day='Sunday';
		

		for($i=8; $i<17;$i++)
		{
			$time="$i:00";
			$j= $time+1;
			$endtime="$j:00";
			echo "<tr bgcolor='#F5F6CE'><td>".$day."</td><td align=center style='font-size:15px; width:100px; color: #0000FF;'>".$time." - ".$endtime."</td></tr>";      
		}
	
	}
	
?>

score 2 · Accepted Answer

当然有很多方法来处理事情。这是一个：

<?php

// SET UP TABLE STRUCTURE
$days = array(
    'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', 'Sunday'
);
$daytimes = array(
    array('08:00:00', '09:00:00'), array('09:00:00', '10:00:00')
    , array('10:00:00', '11:00:00'), array('11:00:00', '12:00:00')
    , array('12:00:00', '13:00:00'), array('13:00:00', '14:00:00')
    , array('14:00:00', '15:00:00'), array('15:00:00', '16:00:00')
    , array('16:00:00', '17:00:00'), array('17:00:00', '18:00:00')
);

// SET UP SCHEDULE    
$schedule = array();

// get data for schedule
$sql=mysqli_query($con,"SELECT TT_ID,TT_Subject, TT_Day, TT_Start, TT_Endtime FROM timetable WHERE L_ID='00106'");
if(mysqli_num_rows($sql)>0)
{
  while ($row=mysqli_fetch_assoc($sql)) {
    foreach ( $daytimes as $times ) {
      if ( $row['TT_Start'] == $times[0]
          || $row['TT_Endtime'] == $times[1]
          || ($row['TT_Start'] > $times[0] && $times[1] < $row['TT_Endtime'] )
      ) {
        $schedule["{$times[0]}-{$times[1]}"][$row['TT_Day']][] = $row['TT_Subject'];
      }
    }
  }
}

// DISPLAY SCHEDULE, headers first
echo <<<EOT

<table border="1">
    <tr>
        <td align="center">Time</td><td align="center">Monday</td><td align="center">Tuesday</td><td align="center">Wednesday</td><td align="center">Thursday</td><td align="center">Friday</td><td align="center">Saturday</td><td align="center">Sunday</td>
    </tr>

EOT;

// roll through hours
foreach ( $daytimes as $times ) {
    $timeslot = "{$times[0]}-{$times[1]}";
    echo "<tr><td>$timeslot</td>";

    // roll through days
    foreach ( $days as $day ) {
        echo '<td>';
        // check for subjects in this slot
        if ( isset($schedule[$timeslot][$day]) ) {
            // and display each
            foreach ( $schedule[$timeslot][$day] as $subject ) {
                echo "$subject<br>";
            }
        }
        echo '</td>';
    }
    echo '</tr>';
}
echo '</table>';

?>

这里的第一件事是进行一个简单的数据库查询，而不是 70 个复杂的查询。然后获取数据库集并滚动它，构建与显示匹配的时间表。

然后显示你的表格，首先滚动通过每小时的时间表，然后每一小时滚动通过每一天。这提供了访问计划中的每个插槽所需的信息。

这种方法还允许每个插槽中有多个主题，并且主题可以跨越数小时。

这不考虑另一个表或休息期中的其他主题信息。

score 0 · Accepted Answer

我解决了我的问题。

<?php
echo "<table class='hoverTable'  cellpadding=10 border=1 align=center style='border-collapse:collapse;width:auto'>";
echo "<tr><td width=50px>Time</td><td>Monday</td><td>Tuesday</td><td>Wednesday</td><td>Thursday</td><td>Friday</td><td>Saturday</td><td>Sunday</td></tr>";      
for($i=8; $i<18;$i++)
{
    echo "<tr>";
    $time="$i:00";
    $j= $time+1;
    $endtime="$j:00";
    echo "<td align=center style='font-size:15px; color:#FF0000;'>".$time." - ".$endtime."</td>";

    if($time=="13:00")
    {
        echo "<td width=80px align='center' style='font-size:15px; height:40px; color:#FF0000;'>Break </td>";
    }
    else
    {
        for($k=1;$k<=7;$k++)
        {
            if($k==1)
                $day='Monday';
            else if($k==2)
                $day='Tuesday';
            else if($k==3)
                $day='Wednesday';
            else if($k==4)
                $day='Thursday';
            else if($k==5)
                $day='Friday';
            else if($k==6)
                $day='Saturday';
            else    
                $day='Sunday';

            echo "<td width=80px align='center' style='font-size:15px; height:40px; color:#FF0000;' >Available</td>";
        }
    }
    echo "</tr>";
}
?>

score 0 · Accepted Answer

您可以像这样设计的表结构数据库相关条目您可以自己填写。

$html = '';
$html .= "<table>";
$html .= "<tr>";
$html .= "<th>Time</th>";
$html .= "<th>Monday</th>";
$html .= "<th>Tuesday</th>";
$html .= "<th>Wednesday</th>";
$html .= "<th>Thursday</th>";
$html .= "<th>Friday</th>";
$html .= "<th>Saturday</th>";
$html .= "<th>Sunday</th>";
$html .= "</tr>";
for($i=8; $i<17;$i++){

    $html .= "<tr>";
    $html .= "<td>".$i.' - ';
    $html .= $i+1;
    $html .= "</td>";
    if($i==13){
        $html .= "<td colspan='7' align='center'> REST </td>";
    }
    else{
        $html .= "<td> </td>";
        $html .= "<td> </td>";
        $html .= "<td> </td>";
        $html .= "<td> </td>";
        $html .= "<td> </td>";
        $html .= "<td> </td>";
        $html .= "<td> </td>";      
    }
    $html .= "</tr>";
}
$html .= '</html>';

echo $html;

php - 如何使用for循环使用php显示日期和时间？

3 回答 3

Related

Reference