我不知道$updateApproval语句有什么问题。一切都很好，$_POST能够从表单中检索数据。当我运行SQL语句时，它在phpMyAdmin上运行良好，替换了变量，所以应该不会有任何错误。
我是在不知情的情况下发生冲突，还是有其他原因导致我的更新声明不起作用？试着在这里和那里切换，但它只是保持安静，没有出现丝毫错误。我为你提供了你需要的信息，如果这很乏味，我很抱歉。非常感谢您的帮助。非常感谢。
这是我的数据库：
同意表
consent
-----------------------------------------------------------------------------------------
consent_id | staff_id | approval_id | type_of_leave | consent_date_from | consent_date_to
休假类型表
leavetype
----------------------------
type_of_leave | leave_type |
员工表
staff
------------------------------------------------------------------
staff_id | role_id | staff_name | gender | staff_email | password |
员工休假表
staffleave
----------------------------------------------------------------------
leave_log | staff_id | annual_leave | sick_leave .....//other leaves and so on
表格在这儿。实际上，我已经将一个select option放入一个表单中，因此有了<td> <tr>标签。
<td>
<div class="form-group">
<form action="doApproval.php" method="post" name="register">
<input hidden name="getStaffId" value="<?php echo $staffId ?>" >
<input hidden name="getConsentId" value="<?php echo $consentId ?>" >
<input hidden name="getLeaveId" value="<?php echo $leaveId ?>" >
<div class="form-group">
<select class="form-control" onchange="this.form.submit()" id="select" name="getConsentChange">
<option value="1" <?php if ($getCurrentStatus == 1) echo "selected"; ?>>Approve</option>
<option value="2" <?php if ($getCurrentStatus == 2) echo "selected"; ?>>Reject</option>
<option <?php if ($getCurrentStatus == 3) echo "selected"; ?>>Pending</option>
</select>
</div>
<noscript><input type="submit" value="Submit"></noscript>
</form>
</div>
</td>
POST将在这里。保存员工休假天数的查询效果良好，但不保存他们的休假状态。
$staffId = $_POST['getStaffId'];
$consentId = $_POST['getConsentId'];
$getConsent = $_POST['getConsentChange'];
$getLeaveId = $_POST['getLeaveId'];
$updateApproval = "UPDATE consent SET approval_id = $getConsent WHERE consent.staff_id = '$staffId' AND consent.consent_id = $getConsent"; //Update statement that is not working
$leaveCheckpoint = "SELECT * FROM consent, staffleave, staff WHERE staffleave.staff_id = staff.staff_id
AND staff.staff_id = consent.staff_id AND consent.consent_id = '$consentId'";
$checkpointQuery = (mysqli_query($link, $leaveCheckpoint)) or die("Retrieve checkpoint error " . mysqli_error($link));
if ($checkLeave = mysqli_fetch_array($checkpointQuery)) {
if ($checkLeave['staff_id'] = '$staffId' && $checkLeave['consent_id'] = '$consentId') {
//retrieving the number of leaves staff have took
if ($getLeaveId == 1 && $getConsent == 1) {
$updatedLeave1 = $chkAnnual + $dateDiff;
$recordLeave = "UPDATE staffleave SET annual_leave = '$updatedLeave1' WHERE staff_id = '$staffId'";
} else if ($getLeaveId == 2 && $getConsent == 1) {
$updatedLeave2 = $chkSick + $dateDiff;
$recordLeave = "UPDATE staffleave SET sick_leave = '$updatedLeave2' WHERE staff_id = '$staffId'";
} else if ......// so on when they meet the condition, it works fine and able to insert.
else {
?>
<script type="text/javascript">
alert("No data was updated in the process")
window.location = "manageStaffLeave.php";
</script>
}
<?php
}
$successConsent = mysqli_query($link, $recordLeave) or die("Insert Leave Date Error " . mysqli_error($link));
}
$approvalUpdate = (mysqli_query($link, $updateApproval)) or die("Update error " . mysqli_error($link));
mysqli_close($link);
?>
<!DOCTYPE html>
<body>
if ($approvalUpdate && $successConsent) {
?>
<script type="text/javascript">
window.location = "manageStaffLeave.php";
</script>
<?php
}
?>
</body>
我想你错过了'；'
<input hidden name="getStaffId" value="<?php echo $staffId; ?>" >
<input hidden name="getConsentId" value="<?php echo $consentId; ?>" >
<input hidden name="getLeaveId" value="<?php echo $leaveId; ?>" >
您犯了一个基本错误：
$checkLeave['staff_id'] = '$staffId' && $checkLeave['consent_id'] = '$consentId
这里您正在影响字符串'$staffId'到数组$checkLeave['staff_id']和$consentId到$checkLeave['consent_id']
删除引号和等号进行比较：
$checkLeave['staff_id'] == $staffId && $checkLeave['consent_id'] == $consentId