Php 显示学生的每月出勤报告

为什么不告诉我谁在场，谁不在场？

文件是

该表包含以下列：

出勤|时间戳|年份|班级|部门|学生| id |类_例程_id |状态

状态值：（0未定义，1存在，2不存在）

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我想我发现了你的问题。您错过了每个周期的结束时间和其他几个括号。我不知道我是否以一种好的方式把你的代码放在一起，但至少现在应该写得更好。我在这里放了两个相同的代码和“不同的语法”，你可以看看哪个看起来更好

<?php
$data = array();

$students = $this->db->get_where('enroll', array('class_id' => $class_id, 'year' => $running_year, 'section_id' => $section_id))->result_array();

foreach ($students as $row):
    ?>
    <tr>
        <td style="text-align: center;">
            <?php echo $this->db->get_where('student', array('student_id' => $row['student_id']))->row()->name; ?>
        </td>
        <?php
        $status = 0;
        for ($i = 1; $i <= $days; $i++) {
            $timestamp = strtotime($i . '-' . $month . '-' . $year[0]);
            $this->db->group_by('timestamp');
            $attendance = $this->db->get_where('attendance', array('section_id' => $section_id, 'class_id' => $class_id, 'year' => $running_year, 'timestamp' => $timestamp, 'student_id' => $row['student_id']))->result_array();
        }
        foreach ($attendance as $row1):
            $month_dummy = date('d', $row1['timestamp']);

            if ($i == $month_dummy) {
                $status = $row1['status'];
            }
        endforeach;
    endforeach;
    ?>

    <td style="text-align: center;">
        <?php if ($status == 1) { ?>
            <i class="entypo-record" style="color: #00a651;"></i>
        <?php } if ($status == 2) { ?>
            <i class="entypo-record" style="color: #ee4749;"></i>
        <?php } $status = 0; ?>
    </td>

我还建议您使用这种语法（我认为最好是回显html标记，然后使用？php十次，但这是每个人的选择）：

---

也许您希望第二个endforeach符合最后的条件。我想你下次一定要说得更具体些。对不起，我什么都没录。
<?php
$data = array();

$students = $this->db->get_where('enroll', array('class_id' => $class_id, 'year' => $running_year, 'section_id' => $section_id))->result_array();

foreach ($students as $row):
    ?>
    <tr>
        <td style="text-align: center;">
            <?php echo $this->db->get_where('student', array('student_id' => $row['student_id']))->row()->name; ?>
        </td>
        <?php
        $status = 0;
        for ($i = 1; $i <= $days; $i++) {
            $timestamp = strtotime($i . '-' . $month . '-' . $year[0]);
            $this->db->group_by('timestamp');
            $attendance = $this->db->get_where('attendance', array('section_id' => $section_id, 'class_id' => $class_id, 'year' => $running_year, 'timestamp' => $timestamp, 'student_id' => $row['student_id']))->result_array();
        }
        foreach ($attendance as $row1):
            $month_dummy = date('d', $row1['timestamp']);

            if ($i == $month_dummy) {
                $status = $row1['status'];
            }
        endforeach;
    endforeach;
    ?>

    <td style="text-align: center;">
        <?php if ($status == 1) { ?>
            <i class="entypo-record" style="color: #00a651;"></i>
        <?php } if ($status == 2) { ?>
            <i class="entypo-record" style="color: #ee4749;"></i>
        <?php } $status = 0; ?>
    </td>

<?php

$data = array();

$students = $this->db->get_where('enroll', array('class_id' => $class_id, 'year' => $running_year, 'section_id' => $section_id))->result_array();

foreach ($students as $row):

    echo '<tr>
        <td style="text-align: center;">' .
    $this->db->get_where('student', array('student_id' => $row['student_id']))->row()->name .
    '</td>';
    $status = 0;
    for ($i = 1; $i <= $days; $i++) {
        $timestamp = strtotime($i . '-' . $month . '-' . $year[0]);
        $this->db->group_by('timestamp');
        $attendance = $this->db->get_where('attendance', array('section_id' => $section_id, 'class_id' => $class_id, 'year' => $running_year, 'timestamp' => $timestamp, 'student_id' => $row['student_id']))->result_array();
    }
    foreach ($attendance as $row1):
        $month_dummy = date('d', $row1['timestamp']);

        if ($i == $month_dummy) {
            $status = $row1['status'];
        }
    endforeach;
endforeach;

echo '<td style="text-align: center;">';
if ($status === 1) {
    echo '<i class="entypo-record" style="color: #00a651;"></i>';
} else if ($status == 2) {
    echo '<i class="entypo-record" style="color: #ee4749;"></i>';
}
$status = 0;
echo '</td>';