`mysqli_insert_id` PHP Class
`mysqli_insert_id` PHP Class
我正在创建一个社交网站，我让人们可以选择上传一个或多个 post。那部分工作正常。
我的问题是，如果有人上传 post 没有图片，然后它会被提交给一个函数，一切都很好。但是，如果有人提交带有图片的 post，唯一错误的是，我无法获得 post 的 id，因此我可以将其放在图片的一列中(s).
我知道问题出在哪里了。当我尝试使用过程编程上传 post 和图像时，我得到了 id，一切都很好。但是当我使用 OOP 上传 post 然后尝试获取 id 时，它不起作用。没有错误或任何列中的值刚好出现 0。有人可以帮我吗？
$post = new Post($con, $userLoggedIn);
$title = trim(strip_tags(filter_var($_POST['title_post'], FILTER_SANITIZE_STRING )));
$body = trim(strip_tags(filter_var($_POST['post_text'], FILTER_SANITIZE_STRING )));
$post->submitPost($title, $body, 'none', $imageName);
if (!$errors) {
$id = mysqli_insert_id($con);
$stmt = $con->prepare("INSERT INTO post_images (image, post_id) VALUES (?, ?)");
$stmt->bind_param('si', $file_path, $id);
// Loop through each file
for( $i=0; $i < $file_count; $i++ ) {
$file_name = $_FILES['files']['name'][$i];
$file_size = $_FILES['files']['size'][$i];
$file_tmp = $_FILES['files']['tmp_name'][$i];
$imageFileType = strtolower(pathinfo($file_name, PATHINFO_EXTENSION));
if ($file_size >= $maxsize) {
$errors = "Your file is too large";
} elseif ($imageFileType != "jpeg" && $imageFileType != "jpg" &&
$imageFileType != "png" && $imageFileType != "gif") {
$errors = "File type not allowed.";
}
//Make sure we have a file path
if (!$errors /* && $file_tmp != "" */) {
$picToUpload = $date_time . " -#- " . md5($file_name) . " -#- " . $_FILES['files']['name'][$i];
$uploadPicture = move_uploaded_file($file_tmp, "uploads/" . $picToUpload);
$file_path = "uploads/" . $picToUpload;
$stmt->execute();
}
}
}
Post.php:
public function submitPost($title, $body, $user_to, $imageName) {
$title = trim(strip_tags(filter_var($_POST['title_post'], FILTER_SANITIZE_STRING)));
$body = trim(strip_tags(filter_var($body, FILTER_SANITIZE_STRING)));
$check_empty = preg_replace('/\s+/', '', $body); //Deletes all spaces
$check_empty_title = preg_replace('/\s+/', '', $title); //Deletes all spaces
if($check_empty != "" || $check_empty_title != "" || $imageName != "") {
$body_array = preg_split("/\s+/", $body);
$title_array = preg_split("/\s+/", $title);
$body = implode(" ", $body_array);
$title = implode(" ", $title_array);
//Current date and time
$date_added = date("Y-m-d H:i:s");
//Get username
$added_by = $this->user_obj->getUsername();
//If user is on own profile, user_to is 'none'
if($user_to == $added_by) {
$user_to = "none";
}
//insert post
$query = $this->con->prepare("INSERT INTO posts (title, body, added_by, user_to, image)
VALUES (?, ?, ?, ?, ?)");
$query->bind_param("sssss", $title, $body, $added_by, $user_to, $imageName);
$query->execute();
$returned_id = mysqli_insert_id($this->con);
//Insert notification
if($user_to != 'none') {
$notification = new Notification($this->con, $added_by);
$notification->insertNotification($returned_id, $user_to, "profile_post");
}
//Update post count for user
$num_posts = $this->user_obj->getNumPosts();
$num_posts++;
$update_query = $this->con->prepare('UPDATE users SET num_posts = ? WHERE username = ?');
$update_query->bind_param("is", $num_posts, $added_by );
$update_query->execute();
$stopWords = "i you are gay am a about above brandon tisson";
$stopWords = preg_split("/[\s,]+/", $stopWords);
$no_punctuation = preg_replace("/[^a-zA-Z 0-9] +/", "", $body);
if (strpos($no_punctuation, "height") === false && strpos($no_punctuation, "width")
=== false && strpos($no_punctuation, "http") === false) {
$no_punctuation = preg_split("/[\s,]+/", $no_punctuation);
foreach ($stopWords as $value ) {
foreach ($no_punctuation as $key => $value2) {
if (strtolower($value) == strtolower($value2) ) {
$no_punctuation[$key] = "";
}
}
}
foreach ($no_punctuation as $value) {
$this->calculateTrend(ucfirst($value));
}
}
}
}
所以总而言之，我试图从过程样式代码中的函数中获取 post 的 ID。
您应该 return 来自 submitPost() 的 post ID。否则，如果有其他插入（例如在 $notification->insertNotification() 中），它们将覆盖由 mysqli_insert_id($con) 编辑的 ID return。
使用 $query->insert_id 而不是 mysqli_insert_id($this->con); 也好一点，因为它特定于那个 INSERT 查询，而不是同一连接上最近的 INSERT .
$post = new Post($con, $userLoggedIn);
$title = trim(strip_tags(filter_var($_POST['title_post'], FILTER_SANITIZE_STRING )));
$body = trim(strip_tags(filter_var($_POST['post_text'], FILTER_SANITIZE_STRING )));
$id = $post->submitPost($title, $body, 'none', $imageName);
if (!$errors) {
$stmt = $con->prepare("INSERT INTO post_images (image, post_id) VALUES (?, ?)");
$stmt->bind_param('si', $file_path, $id);
// Loop through each file
for( $i=0; $i < $file_count; $i++ ) {
$file_name = $_FILES['files']['name'][$i];
$file_size = $_FILES['files']['size'][$i];
$file_tmp = $_FILES['files']['tmp_name'][$i];
$imageFileType = strtolower(pathinfo($file_name, PATHINFO_EXTENSION));
if ($file_size >= $maxsize) {
$errors = "Your file is too large";
} elseif ($imageFileType != "jpeg" && $imageFileType != "jpg" &&
$imageFileType != "png" && $imageFileType != "gif") {
$errors = "File type not allowed.";
}
//Make sure we have a file path
if (!$errors /* && $file_tmp != "" */) {
$picToUpload = $date_time . " -#- " . md5($file_name) . " -#- " . $_FILES['files']['name'][$i];
$uploadPicture = move_uploaded_file($file_tmp, "uploads/" . $picToUpload);
$file_path = "uploads/" . $picToUpload;
$stmt->execute();
}
}
}
public function submitPost($title, $body, $user_to, $imageName) {
$title = trim(strip_tags(filter_var($_POST['title_post'], FILTER_SANITIZE_STRING)));
$body = trim(strip_tags(filter_var($body, FILTER_SANITIZE_STRING)));
$check_empty = preg_replace('/\s+/', '', $body); //Deletes all spaces
$check_empty_title = preg_replace('/\s+/', '', $title); //Deletes all spaces
if($check_empty != "" || $check_empty_title != "" || $imageName != "") {
$body_array = preg_split("/\s+/", $body);
$title_array = preg_split("/\s+/", $title);
$body = implode(" ", $body_array);
$title = implode(" ", $title_array);
//Current date and time
$date_added = date("Y-m-d H:i:s");
//Get username
$added_by = $this->user_obj->getUsername();
//If user is on own profile, user_to is 'none'
if($user_to == $added_by) {
$user_to = "none";
}
//insert post
$query = $this->con->prepare("INSERT INTO posts (title, body, added_by, user_to, image)
VALUES (?, ?, ?, ?, ?)");
$query->bind_param("sssss", $title, $body, $added_by, $user_to, $imageName);
$query->execute();
$returned_id = $query->insert_id;
//Insert notification
if($user_to != 'none') {
$notification = new Notification($this->con, $added_by);
$notification->insertNotification($returned_id, $user_to, "profile_post");
}
//Update post count for user
$num_posts = $this->user_obj->getNumPosts();
$num_posts++;
$update_query = $this->con->prepare('UPDATE users SET num_posts = ? WHERE username = ?');
$update_query->bind_param("is", $num_posts, $added_by );
$update_query->execute();
$stopWords = "i you are gay am a about above brandon tisson";
$stopWords = preg_split("/[\s,]+/", $stopWords);
$no_punctuation = preg_replace("/[^a-zA-Z 0-9] +/", "", $body);
if (strpos($no_punctuation, "height") === false && strpos($no_punctuation, "width")
=== false && strpos($no_punctuation, "http") === false) {
$no_punctuation = preg_split("/[\s,]+/", $no_punctuation);
foreach ($stopWords as $value ) {
foreach ($no_punctuation as $key => $value2) {
if (strtolower($value) == strtolower($value2) ) {
$no_punctuation[$key] = "";
}
}
}
foreach ($no_punctuation as $value) {
$this->calculateTrend(ucfirst($value));
}
}
}
return $returned_id;
}
我正在创建一个社交网站，我让人们可以选择上传一个或多个 post。那部分工作正常。
我的问题是，如果有人上传 post 没有图片，然后它会被提交给一个函数，一切都很好。但是，如果有人提交带有图片的 post，唯一错误的是，我无法获得 post 的 id，因此我可以将其放在图片的一列中(s).
我知道问题出在哪里了。当我尝试使用过程编程上传 post 和图像时，我得到了 id，一切都很好。但是当我使用 OOP 上传 post 然后尝试获取 id 时，它不起作用。没有错误或任何列中的值刚好出现 0。有人可以帮我吗？
$post = new Post($con, $userLoggedIn);
$title = trim(strip_tags(filter_var($_POST['title_post'], FILTER_SANITIZE_STRING )));
$body = trim(strip_tags(filter_var($_POST['post_text'], FILTER_SANITIZE_STRING )));
$post->submitPost($title, $body, 'none', $imageName);
if (!$errors) {
$id = mysqli_insert_id($con);
$stmt = $con->prepare("INSERT INTO post_images (image, post_id) VALUES (?, ?)");
$stmt->bind_param('si', $file_path, $id);
// Loop through each file
for( $i=0; $i < $file_count; $i++ ) {
$file_name = $_FILES['files']['name'][$i];
$file_size = $_FILES['files']['size'][$i];
$file_tmp = $_FILES['files']['tmp_name'][$i];
$imageFileType = strtolower(pathinfo($file_name, PATHINFO_EXTENSION));
if ($file_size >= $maxsize) {
$errors = "Your file is too large";
} elseif ($imageFileType != "jpeg" && $imageFileType != "jpg" &&
$imageFileType != "png" && $imageFileType != "gif") {
$errors = "File type not allowed.";
}
//Make sure we have a file path
if (!$errors /* && $file_tmp != "" */) {
$picToUpload = $date_time . " -#- " . md5($file_name) . " -#- " . $_FILES['files']['name'][$i];
$uploadPicture = move_uploaded_file($file_tmp, "uploads/" . $picToUpload);
$file_path = "uploads/" . $picToUpload;
$stmt->execute();
}
}
}
Post.php:
public function submitPost($title, $body, $user_to, $imageName) {
$title = trim(strip_tags(filter_var($_POST['title_post'], FILTER_SANITIZE_STRING)));
$body = trim(strip_tags(filter_var($body, FILTER_SANITIZE_STRING)));
$check_empty = preg_replace('/\s+/', '', $body); //Deletes all spaces
$check_empty_title = preg_replace('/\s+/', '', $title); //Deletes all spaces
if($check_empty != "" || $check_empty_title != "" || $imageName != "") {
$body_array = preg_split("/\s+/", $body);
$title_array = preg_split("/\s+/", $title);
$body = implode(" ", $body_array);
$title = implode(" ", $title_array);
//Current date and time
$date_added = date("Y-m-d H:i:s");
//Get username
$added_by = $this->user_obj->getUsername();
//If user is on own profile, user_to is 'none'
if($user_to == $added_by) {
$user_to = "none";
}
//insert post
$query = $this->con->prepare("INSERT INTO posts (title, body, added_by, user_to, image)
VALUES (?, ?, ?, ?, ?)");
$query->bind_param("sssss", $title, $body, $added_by, $user_to, $imageName);
$query->execute();
$returned_id = mysqli_insert_id($this->con);
//Insert notification
if($user_to != 'none') {
$notification = new Notification($this->con, $added_by);
$notification->insertNotification($returned_id, $user_to, "profile_post");
}
//Update post count for user
$num_posts = $this->user_obj->getNumPosts();
$num_posts++;
$update_query = $this->con->prepare('UPDATE users SET num_posts = ? WHERE username = ?');
$update_query->bind_param("is", $num_posts, $added_by );
$update_query->execute();
$stopWords = "i you are gay am a about above brandon tisson";
$stopWords = preg_split("/[\s,]+/", $stopWords);
$no_punctuation = preg_replace("/[^a-zA-Z 0-9] +/", "", $body);
if (strpos($no_punctuation, "height") === false && strpos($no_punctuation, "width")
=== false && strpos($no_punctuation, "http") === false) {
$no_punctuation = preg_split("/[\s,]+/", $no_punctuation);
foreach ($stopWords as $value ) {
foreach ($no_punctuation as $key => $value2) {
if (strtolower($value) == strtolower($value2) ) {
$no_punctuation[$key] = "";
}
}
}
foreach ($no_punctuation as $value) {
$this->calculateTrend(ucfirst($value));
}
}
}
}
所以总而言之，我试图从过程样式代码中的函数中获取 post 的 ID。
您应该 return 来自 submitPost() 的 post ID。否则，如果有其他插入（例如在 $notification->insertNotification() 中），它们将覆盖由 mysqli_insert_id($con) 编辑的 ID return。
使用 $query->insert_id 而不是 mysqli_insert_id($this->con); 也好一点，因为它特定于那个 INSERT 查询，而不是同一连接上最近的 INSERT .
$post = new Post($con, $userLoggedIn);
$title = trim(strip_tags(filter_var($_POST['title_post'], FILTER_SANITIZE_STRING )));
$body = trim(strip_tags(filter_var($_POST['post_text'], FILTER_SANITIZE_STRING )));
$id = $post->submitPost($title, $body, 'none', $imageName);
if (!$errors) {
$stmt = $con->prepare("INSERT INTO post_images (image, post_id) VALUES (?, ?)");
$stmt->bind_param('si', $file_path, $id);
// Loop through each file
for( $i=0; $i < $file_count; $i++ ) {
$file_name = $_FILES['files']['name'][$i];
$file_size = $_FILES['files']['size'][$i];
$file_tmp = $_FILES['files']['tmp_name'][$i];
$imageFileType = strtolower(pathinfo($file_name, PATHINFO_EXTENSION));
if ($file_size >= $maxsize) {
$errors = "Your file is too large";
} elseif ($imageFileType != "jpeg" && $imageFileType != "jpg" &&
$imageFileType != "png" && $imageFileType != "gif") {
$errors = "File type not allowed.";
}
//Make sure we have a file path
if (!$errors /* && $file_tmp != "" */) {
$picToUpload = $date_time . " -#- " . md5($file_name) . " -#- " . $_FILES['files']['name'][$i];
$uploadPicture = move_uploaded_file($file_tmp, "uploads/" . $picToUpload);
$file_path = "uploads/" . $picToUpload;
$stmt->execute();
}
}
}
public function submitPost($title, $body, $user_to, $imageName) {
$title = trim(strip_tags(filter_var($_POST['title_post'], FILTER_SANITIZE_STRING)));
$body = trim(strip_tags(filter_var($body, FILTER_SANITIZE_STRING)));
$check_empty = preg_replace('/\s+/', '', $body); //Deletes all spaces
$check_empty_title = preg_replace('/\s+/', '', $title); //Deletes all spaces
if($check_empty != "" || $check_empty_title != "" || $imageName != "") {
$body_array = preg_split("/\s+/", $body);
$title_array = preg_split("/\s+/", $title);
$body = implode(" ", $body_array);
$title = implode(" ", $title_array);
//Current date and time
$date_added = date("Y-m-d H:i:s");
//Get username
$added_by = $this->user_obj->getUsername();
//If user is on own profile, user_to is 'none'
if($user_to == $added_by) {
$user_to = "none";
}
//insert post
$query = $this->con->prepare("INSERT INTO posts (title, body, added_by, user_to, image)
VALUES (?, ?, ?, ?, ?)");
$query->bind_param("sssss", $title, $body, $added_by, $user_to, $imageName);
$query->execute();
$returned_id = $query->insert_id;
//Insert notification
if($user_to != 'none') {
$notification = new Notification($this->con, $added_by);
$notification->insertNotification($returned_id, $user_to, "profile_post");
}
//Update post count for user
$num_posts = $this->user_obj->getNumPosts();
$num_posts++;
$update_query = $this->con->prepare('UPDATE users SET num_posts = ? WHERE username = ?');
$update_query->bind_param("is", $num_posts, $added_by );
$update_query->execute();
$stopWords = "i you are gay am a about above brandon tisson";
$stopWords = preg_split("/[\s,]+/", $stopWords);
$no_punctuation = preg_replace("/[^a-zA-Z 0-9] +/", "", $body);
if (strpos($no_punctuation, "height") === false && strpos($no_punctuation, "width")
=== false && strpos($no_punctuation, "http") === false) {
$no_punctuation = preg_split("/[\s,]+/", $no_punctuation);
foreach ($stopWords as $value ) {
foreach ($no_punctuation as $key => $value2) {
if (strtolower($value) == strtolower($value2) ) {
$no_punctuation[$key] = "";
}
}
}
foreach ($no_punctuation as $value) {
$this->calculateTrend(ucfirst($value));
}
}
}
return $returned_id;
}