请帮助我完成这个项目... 在一个输入中为单个发布或发布php oop上传多个图像。 当我想插入具有post_id值的图像，但我不明白我如何使用此代码时.....请请帮助我任何一个.... 以及如何删除已删除一个帖子的所有图像，以及如何更新帖子以及如何按帖子显示所有图像，这意味着当我单击单个帖子并使用单个帖子中的所有较早发布的图像打开时。...
Database.php
<?php
Class Database{
public $host = DB_HOST;
public $user = DB_USER;
public $pass = DB_PASS;
public $dbname = DB_NAME;
public $link;
public $error;
public function __construct(){
$this->connectDB();
}
private function connectDB(){
$this->link = new mysqli($this->host, $this->user, $this->pass, $this->dbname);
if(!$this->link){
$this->error ="Connection fail".$this->link->connect_error;
return false;
}
}
// Select or Read data
public function select($query){
$result = $this->link->query($query) or die($this->link->error.__LINE__);
if($result->num_rows > 0){
return $result;
} else {
return false;
}
}
// Insert data
public function insert($query){
$insert_row = $this->link->query($query) or die($this->link->error.__LINE__);
if($insert_row){
return $insert_row;
} else {
return false;
}
}
// Update data
public function update($query){
$update_row = $this->link->query($query) or die($this->link->error.__LINE__);
if($update_row){
return $update_row;
} else {
return false;
}
}
// Delete data
public function delete($query){
$delete_row = $this->link->query($query) or die($this->link->error.__LINE__);
if($delete_row){
return $delete_row;
} else {
return false;
}
}
// Inserted Last ID
public function lid($query){
$inslid = $this->link->query($query) or die($this->link->error.__LINE__);
if($inslid){
return $inslid;
} else {
return false;
}
}
}
?>
post_add.php
<?php
require_once('inc/top.php');
require_once('inc/header.php');
require_once('inc/sidebar.php');
?>
<li class="active">Add New Post</li>
</ul><!-- /.breadcrumb -->
<div class="nav-search" id="nav-search">
<form class="form-search">
<span class="input-icon">
<input type="text" placeholder="Search ..." class="nav-search-input" id="nav-search-input" autocomplete="off" />
<i class="ace-icon fa fa-search nav-search-icon"></i>
</span>
</form>
</div><!-- /.nav-search -->
</div>
<div class="page-content">
<?php require_once('inc/athm.php'); ?>
<div class="page-header">
<h1>
<a href="index.php">Dashboard</a>
<small>
<i class="ace-icon fa fa-angle-double-right"></i>
Add New Post
</small>
</h1>
</div><!-- /.page-header -->
<div class="row">
<div class="col-xs-12">
<!-- PAGE CONTENT BEGINS -->
<?php
if ($_SERVER['REQUEST_METHOD'] == 'POST'){
$title = mysqli_real_escape_string($db->link, $_POST['title']);
$cat = mysqli_real_escape_string($db->link, $_POST['cat']);
$body = mysqli_real_escape_string($db->link, $_POST['body']);
$tags = mysqli_real_escape_string($db->link, $_POST['tags']);
$author = mysqli_real_escape_string($db->link, $_POST['author']);
$userid = mysqli_real_escape_string($db->link, $_POST['userid']);
if ($title == "" || $cat == "" || $body == "" || $tags == "" || $author == "") {
echo "<span class='error'> Field must not be empty ! </span>";
}else{
$query = "INSERT INTO tbl_post(cat, title, body, author, tags, userid) VALUES('$cat','$title','$body','$author','$tags','$userid')";
$post_ins_id = $db->lid($query);
$inserted_rows = $db->insert($query);
if ($inserted_rows) {
echo "<span class='success'>Data Inserted Successfully. </span>";
}else {
echo "<span class='error'>Data Not Inserted !</span>";
}
}
if (isset($_FILES['image']['name'])) {
for($i=0; $i< count($_FILES["image"]["name"]); $i++){
$permited = array('jpg', 'jpeg', 'png', 'gif');
$file_name = $_FILES['image']['name'][$i];
$file_size = $_FILES['image']['size'][$i];
$file_temp = $_FILES['image']['tmp_name'][$i];
$div = explode('.', $file_name);
$file_ext = strtolower(end($div));
$unique_image = substr(md5(time()), 0, 10).'.'.$file_ext;
$uploaded_image = "../images/".$unique_image;
if ($file_size >1048567) {
echo "<span class='error'>Image Size should be less then 1MB! </span>";
} elseif (in_array($file_ext, $permited) === false) {
echo "<span class='error'>You can upload only:-" .implode(', ', $permited)."</span>";
} else{
move_uploaded_file($file_temp, $uploaded_image);
$query = "INSERT INTO tbl_images(post_id, cat, image) VALUES('$post_ins_id, $cat','$uploaded_image')";
$inserted_rows = $db->insert($query);
if ($inserted_rows) {
echo "<span class='success'>Data Inserted Successfully. </span>";
}else {
echo "<span class='error'>Data Not Inserted !</span>";
}
}
}
}
}
?>
<form action="" method="post" class="form-horizontal" role="form" enctype="multipart/form-data">
<div class="form-group">
<label class="col-sm-3 control-label no-padding-right" for="form-field-1-1"> Post Title </label>
<div class="col-sm-9">
<input type="text" name="title" id="form-field-1-1" placeholder="Please Enter Your Post Title" class="form-control" />
</div>
</div>
<div class="form-group">
<label class="col-sm-3 control-label no-padding-right" for="form-field-1-1"> Post Category </label>
<div class="col-sm-9">
<select id="select" name="cat" class="form-control">
<option>Select Category</option>
<?php
$query = "select * from tbl_category";
$category = $db->select($query);
if ($category) {
while ($result = $category->fetch_assoc()) {
?>
<option value="<?php echo $result['id']; ?>"><?php echo $result['name']; ?></option>
<?php } } ?>
</select>
</div>
</div>
<div class="form-group">
<label class="col-sm-3 control-label no-padding-right" for="form-field-1-1"> Upload Image </label>
<div class="col-sm-9">
<input type="file" name="image[]" class="form-control" multiple="" />
</div>
</div>
<div class="form-group">
<label class="col-sm-3 control-label no-padding-right" for="form-field-1-1"> Post Content </label>
<div class="col-sm-9">
<textarea name="body" id="body" cols="30" rows="10" class="form-control"></textarea>
</div>
</div>
<div class="form-group">
<label class="col-sm-3 control-label no-padding-right" for="form-field-1-1"> Post Tags </label>
<div class="col-sm-9">
<input type="text" name="tags" id="form-field-1-1" placeholder="Please Enter Your Post Tags" class="form-control" />
</div>
</div>
<div class="form-group">
<label class="col-sm-3 control-label no-padding-right" for="form-field-1-1"> Post Author </label>
<div class="col-sm-9">
<input type="text" name="author" id="form-field-1-1" value="<?php echo Session::get('username'); ?>" class="form-control" readonly=""/>
<input type="hidden" name="userid" id="form-field-1-1" value="<?php echo Session::get('userId'); ?>" class="form-control" />
</div>
</div>
<div class="clearfix"></div>
<div class="clearfix form-actions">
<div class="col-md-offset-3 col-md-9">
<button class="btn btn-info" type="submit" name="submit"><i class="ace-icon fa fa-check bigger-110"></i>Add New Post</button>
<button class="btn" type="reset"><i class="ace-icon fa fa-undo bigger-110"></i>Reset</button>
</div>
</div>
</form>
<?php require_once('inc/footer.php'); ?>