pdo

问题 I already did inner join before this code but then it seems like every time i have multiple queries it doesnt work. But then when I did it single query it seems fine and working. Please help me experts. Thank you! <?php include('db.php'); include('function.php'); if(isset($_POST["personal_info_id"])) { $id1 = $_POST["personal_info_id"]; $id2 = $_POST["personal_info_id"]; $sql = "SELECT * FROM hr_details WHERE personal_info_id = '$id1'"; $sql .="SELECT * FROM personal_info WHERE personal_info

问题 I am trying to use $dbc->connect_error to check if any error occurs while trying to connect to my databease. I always get an error page saying: Notice: Undefined property: PDO::$connect_error in C:\xampp\htdocs\add_products_processing.php on line 7 I am using Windows7 with XAMPP v3.2.2. The full code is shown below. I am sure that the username and the password are correct. Any advice? <?php $dsn = 'mysql:host=localhost;dbname=technoglance'; $username = 'root'; $password = 'password'; $dbc =

问题 $fileCount = count($_FILES); for ($i = 0; $i < $fileCount; $i++) { $fp = fopen($_FILES["file_".$i]['tmp_name'], 'rb'); $stmt4 = $dbh - > prepare("INSERT INTO files_tbl (pin,remarks,fileblob,file_type,nameoffile,filesize) VALUES (?,?,?,?,?,?)"); $stmt4 - > bindValue(1, $pin, PDO::PARAM_STR); $stmt4 - > bindValue(2, $remarks, PDO::PARAM_STR); $stmt4 - > bindParam(3, $fp, PDO::PARAM_LOB); $stmt4 - > bindParam(4, $_FILES["file_".$i]['type'], PDO::PARAM_STR); $stmt4 - > bindValue(5, $_FILES["file_

问题 I am new to php and trying hard to learn its why you guys and gals need to Forgive me for asking a lot! Here is my question; I am trying to call a function with where clause multiple times, I have read allmost all posts and examples still didn't understand how to do it. I tought that An example will be more useful than any blurb I can write. Here is the function I am trying to create and use it multiple times : function getTable($tableName, $clause) { $stmt = $pdo->prepare("SELECT * FROM ".

问题 I am new to php and trying hard to learn its why you guys and gals need to Forgive me for asking a lot! Here is my question; I am trying to call a function with where clause multiple times, I have read allmost all posts and examples still didn't understand how to do it. I tought that An example will be more useful than any blurb I can write. Here is the function I am trying to create and use it multiple times : function getTable($tableName, $clause) { $stmt = $pdo->prepare("SELECT * FROM ".

问题 I'm trying to connect to a MySQL database from phpMyAdmin. But when I put in username and password I get two error messages saying: mysqli_real_connect(): Server sent charset (255) unknown to the client. Please, report to the developers mysqli_real_connect(): (HY000/2054): Server sent charset unknown to the client. Please, report to the developers I'm using MySQL 8.0.11 and phpMyAdmin 4.8.2 I found this answer for a similar problem: PDO::__construct(): Server sent charset (255) unknown to the

问题 I have this: $dbh = new PDO("odbc:Driver={Microsoft Access Driver (*.mdb, *.accdb)};Dbq=$mdbFilename", $username, $password); $sql = "SELECT * FROM this_table"; $stmt = $dbh->query($sql); //num of rows? How do I get the number of rows returned from that SELECT statement? Thanks all 回答1: SELECT count(*) FROM this_table is an option... Regarding rowCount: PDOStatement::rowCount() returns the number of rows affected by the last DELETE, INSERT, or UPDATE statement executed by the corresponding

问题 This question already has answers here : PDO error: “ SQLSTATE[HY000]: General error ” When updating database (2 answers) Closed 2 years ago . I am getting this error: Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[HY000]: General error' in ... ..whenever I execute this code with PDO: //Select data from the topic. $s = $dbh->prepare("SELECT * FROM forum_topics WHERE forum_id=:forum_cat_id AND topic_id=:topicid"); $s->bindParam(':forum_cat_id', $forum_cat_id); $s-

问题 This question already has answers here : PDO error: “ SQLSTATE[HY000]: General error ” When updating database (2 answers) Closed 2 years ago . I am getting this error: Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[HY000]: General error' in ... ..whenever I execute this code with PDO: //Select data from the topic. $s = $dbh->prepare("SELECT * FROM forum_topics WHERE forum_id=:forum_cat_id AND topic_id=:topicid"); $s->bindParam(':forum_cat_id', $forum_cat_id); $s-

问题 This question already has answers here : PDO error: “ SQLSTATE[HY000]: General error ” When updating database (2 answers) Closed 2 years ago . I am getting this error: Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[HY000]: General error' in ... ..whenever I execute this code with PDO: //Select data from the topic. $s = $dbh->prepare("SELECT * FROM forum_topics WHERE forum_id=:forum_cat_id AND topic_id=:topicid"); $s->bindParam(':forum_cat_id', $forum_cat_id); $s-