您好看了其他已回答的问题，但一直无法修复我的问题。基本运行查询到数据库每个都在文本字段上发布，但是当涉及选择选项时，它返回此错误。 Prepare failed: (0)
Fatal error: Call to a member function bind_param() on boolean in /home/assessment.php on line 32。通过在问题来源的时间查询一个字段来对所有内容进行条带化，我发现是在发布选择选项的时候。
下面是我的完整代码。
<?php
session_start();
//error_reporting(E_ALL); ini_set('display_errors', 1);
if(!isset($_SESSION['user_type'])){
header('Location: index.php');
}
// include file
require_once('include/connection.php');
// define user session
$userId = $_SESSION['user_id'];
$userName = $_SESSION['user_name'];
$error = [] ;
$status = "";
if(isset($_POST['submit'])) {
$priority = trim($_POST['priority']);
$services = trim($_POST['services']);
$therapist = implode(' / ', $_POST['therapist']);
$created_at = date('Y-m-d');
$stmt = $con->stmt_init();
if(!($stmt = $con->prepare("INSERT INTO assessment (priority, services, therapist, created_at)
VALUES (?,?,?,?)"))) {
echo "Prepare failed: (" . $con->errno . ")" . $con->error;
}
if(!$stmt->bind_param('ssss', $priority, $services, $therapist, $created_at)){
echo "Binding paramaters failed:(" . $stmt->errno . ")" . $stmt->error;
}
if(!$stmt->execute()){
echo "Execute failed: (" . $stmt->errno .")" . $stmt->error;
}
if($stmt) {
// $_SESSION['main_notice'] = '<div class="alert alert-success">"Access Code Added successfully!"</div>';
$status = '<div class="alert alert-success">Client Added successfully!</div>';
}else{
$status = '<span class="alert alert-danger">Error in your query</div>';
}
$stmt->close();
}
// title page
$title = "New Assessment Record Entry | Task Allocation ";
// include header
require_once('include/header.php');
?>
<!-- ====================================================
================= CONTENT ===============================
===================================================== -->
<section id="content">
<div class="page page-shop-single-order">
<div class="pageheader">
<h2>New Accessment Record <span>// please complete below form details and information</span></h2>
<div class="page-bar">
<ul class="page-breadcrumb">
<li>
<a href="index.php"><i class="fa fa-home"></i> Task Allocation</a>
</li>
<li>
<a href="client.php">Client Records</a>
</li>
<li>
<a href="#">Client Details</a>
</li>
</ul>
</div>
</div>
<!-- row -->
<div class="row">
<!-- col -->
<div class="col-md-12">
<!-- tile -->
<section class="tile">
<!-- tile header -->
<div class="tile-header dvd dvd-btm">
<h1 class="custom-font"><strong>Assessment</strong> Information</h1>
<ul class="controls">
<li class="dropdown">
<a role="button" tabindex="0" class="dropdown-toggle settings" data-toggle="dropdown">
<i class="fa fa-cog"></i>
<i class="fa fa-spinner fa-spin"></i>
</a>
<ul class="dropdown-menu pull-right with-arrow animated littleFadeInUp">
<li>
<a role="button" tabindex="0" class="tile-refresh">
<i class="fa fa-refresh"></i> Refresh
</a>
</li>
</ul>
</li>
</ul>
</div>
<!-- /tile header -->
<?php if(isset($status)){ echo $status; }?>
<!-- tile body -->
<div class="tile-body">
<p class="text-muted">Please enter your client personal details below. </p>
<br>
<form name="assessmentRecord" role="assessmentRecord" id="client_form" data-parsley-validate="" action="<?php echo htmlspecialchars($_SERVER['PHP_SELF']); ?>" method="post" autocomplete='off'>
<div class="row">
<div class="form-group col-sm-6 col-md-3">
<label for="services"><strong>Servcies:</strong> </label>
<select name="services" class="form-control underline-input" placeholder="Select Servcie Option" value='<?php //echo $_POST['services']; ?>'
data-parsley-trigger="change"
required-no>
<option value="">Select Servcie Option...</option>
<option value="Repid Response Team">Rapid Response Team</option>
<option value="Supported Discharge Team">Supported Discharge Team</option>
<option value="Early Supported Discharge">Early Supported Discharge</option>
</select>
</div>
<div class="form-group col-sm-6 col-md-3">
<label for="priority"><strong>Priorty Visit: </strong></label>
<select name="priority" class="form-control underline-input"
data-parsley-trigger="change"
required-no>
<option value=>Select Priorty...</option>
<option value="essential">Essential</option>
<option value="non-essential">Non-Essential</option>
</select>
</div>
<div class="form-group col-sm-6 col-md-4">
<label for="therapist"><strong>Senior Practitional / SP: </strong></label>
<select name="therapist" class="form-control selectpicker"
<?php
require_once('include/database.php');
// // read current record's data
try {
// prepare select query
$getUser = "select firstname, lastname, profession from user WHERE user_type = 'therapist'";
$stmt = $con->prepare( $getUser );
// execute our query
$stmt->execute();
// store retrieved row to a variable
while ($row = $stmt->fetch(PDO::FETCH_ASSOC)){
// values to fill up our form
$firstname = $row['firstname'];
$lastname = $row['lastname'];
$profession = $row['profession'];
echo '<option id="firstname_'.$row['id'].'" value="'. $row['id'] .'">'.$row['firstname'] . ' ' . $row['lastname'] . ' - ' . $row['profession'].'</option> ';
}
}
// show error
catch(PDOException $exception){
die('ERROR: ' . $exception->getMessage());
}
?>
</select>
</div>
</div>
<div class="form-group text-left mt-20">
<button type="submit" class="btn btn-primary pull-right" name="submit" id='submit'>ADD RECORD</button>
<!-- <label class="checkbox checkbox-custom-alt checkbox-custom-sm inline-block">
<input type="checkbox"><i></i> Remember me
</label> -->
<a href="assessment.php">
<button type="button" class="btn btn-greensea b-0 br-2 mr-5">Back To Records</button>
</a>
</div>
</form>
</div>
<!-- /title body -->
</section>
</div>
<!-- /col -->
</div><!-- /row-->
</div><!-- page -->
</section>
<!--/ CONTENT -->
<!-- ============================================
============== INCLUDE FOOTER ===============
============================================= -->
<?php include_once 'include/footer.php'; ?>