pdo

问题 I just switched to PDO from mySQLi (from mySQL) and it's so far good and easy, especially regarding prepared statements This is what I have for a select with prepared statement Main DB file (included in all pages): class DBi { public static $conn; // this I need to make the connection "global" } try { DBi::$conn = new PDO("mysql:host=$dbhost;dbname=$dbname;charset=utf8", $dbuname, $dbpass); DBi::$conn->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC); DBi::$conn->setAttribute(PDO:

问题 This question already has answers here : Html / Php form not adding to SQL database (2 answers) Closed 2 years ago . I've been working on this for hours now and including rebuilding my whole code I cannot figure out what is wrong. The HTML form is supposed to populate the patients SQL database but it is not working. I have a similar form that I am using on another part of the website that works flawlessly but this on doesn't seem to and a can't figure out why. I have checked if the $_POST 's

问题 I’m using PDO driver to access MySQL database. Everything is working OK on that part. My database.php looks like this: $active_group = 'default'; $active_record = FALSE; $db['default']['hostname'] = 'mysql:host=127.0.0.1:3386'; $db['default']['username'] = 'root'; $db['default']['password'] = ''; $db['default']['database'] = 'mydatabase'; $db['default']['dbdriver'] = 'pdo'; $db['default']['dbprefix'] = ''; $db['default']['pconnect'] = TRUE; $db['default']['db_debug'] = TRUE; $db['default'][

问题 Let's say I had something like the following: function return_some_info($db, $id){ if (! preg_match("/^\d{5}$/",$id)) { header("Location: safepage.php"); exit; } $query="SELECT `column1`, `columns2` FROM `table` WHERE `columnId`=:id ORDER BY `column1` ASC"; $query_params = array( ':id' => $id ); $stmt = $db->prepare($query); $stmt->execute($query_params); while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) { $infoArr[]=$row; }; return $infoArr; } And let's say $id is a dynamic variable that could

问题 EDIT::: So I have classes that I would like to work together. My first two establish a connection to the database: dbconn.php <?php class dbconn { protected $dbname; protected $dbuser; protected $dbpassword; protected $dbhost; protected $connection; public function __construct($dbhost, $dbname, $dbuser, $dbpass) { $this->dbname = $dbname; $this->dbhost = $dbhost; $this->dbuser = $dbuser; $this->dbpass = $dbpass; $this->connect(); } public function getConnection() { return $this->connection; }

问题 I've been scratching my head over this for a few days now and I've still got nowhere. I'm trying to pull a small set of values from a MySQL database via PHP PDO; I know PDO works as I am using it else where and I have based my code around te previously working code. function custom_sub_cat_list($db_details, $cat_id) { //ln21 $subcat = NULL; try { $h = new PDO("mysql:host=".$db_details['host'].";dbase=".$db_details['db'],$db_details['user'],$db_details['pass']); $h->setAttribute(PDO::ATTR

问题 Just writing a PHP website and using mySqli for my database connectivity. Really enjoying it as I can use Prepare statements and then do a $result = $stmt->get_result(); which loads results into an associated array. However, thought it best be time to upload a few pages and the DB to hosting site to test speed and such to find that it does not support the $stmt->get_result(); command, having it needing to use the mysqlnd driver which my host does not support. Looking into this nor does many

问题 How can I retrieve large data from mysql to php? I've tried, but I'm getting a 1048576 characters string and my row is bigger than that. 回答1: Ok, so thanks to Pablo Jiménez, that was quick. Pdo's buffer was indeed too small, by doing so i was able to retrieve my data. $pdo = new PDO( $dsn, $username, $password, array(PDO::MYSQL_ATTR_MAX_BUFFER_SIZE => 2097152) ); 来源： https://stackoverflow.com/questions/38499063/how-to-retrieve-large-data-from-mysql-to-php

问题 try { $db = new PDO("mysql:host=$host;dbname=$dbname",$user,$password) ; $db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); $formInfo = array('fname','lname','email','password','gender') ; $entry = array() ; foreach($formInfo as $data) { $entry[$data] = $_POST[$data]; } //print_r($entry); $salt = Hash::gen_salt() ; $sqlcollum = array( 'First_name'=> $entry['fname'] , 'Last_name' => $entry['lname'] , 'email' => $entry['email'] , 'password' => Hash::gen_password($entry['password'],

问题 I have a problem with charset. When im inserting values to table in russian letters it appears like this - Р?ван. This is my Database connection class. class Database { public $user = 'root'; public $password = ''; function __construct() { $this->connect(); } function connect() { try { $this->dbh = new PDO('mysql:host=localhost;dbname=university', $this->user, $this->password,array(PDO::MYSQL_ATTR_INIT_COMMAND=>'SET NAMES CP1251')); $this->dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE