bindparam

问题 I have a mysqli query with the following code: $db_usag->query("UPDATE Applicant SET phone_number ='$phone_number', street_name='$street_name', city='$city', county='$county', zip_code='$zip_code', day_date='$day_date', month_date='$month_date', year_date='$year_date' WHERE account_id='$account_id'"); However all the data is extracted from HTML documents so to avoid errors I would like to use a prepared statement. I found PHP documentation on bind_param() but there is no UPDATE example. 回答1:

问题 I can not get this to work. I've spent way to many hours on it now. This works: $mysqli = new mysqli("localhost", "root", "root", "db"); if(!$mysqli || $mysqli->connect_errno) { return; } $query_str= "SELECT name FROM table WHERE city IN ('Nashville','Knoxville')"; $query_prepared = $mysqli->stmt_init(); if($query_prepared && $query_prepared->prepare($query_str)) { $query_prepared->execute(); But this I can NOT get it to work with a bind_param like this: $query_str= "SELECT name FROM table

问题 I want to dynamically determine the data type of input values I am getting from my HTML input form.this will assist me to bind parameter values of data I am inserting into my database using PHP. This information will assist me to determine the values of the string 'sss' in the code below for MySQL prepared statement, I want to create an insert data class and the input values can be of the type 'sdib' for the types string, double,integer,or Blob. if($stmt = $mysqli->prepare($sql)) { $stmt-

问题 I am converting an existing project from MySQL to Postgres. There are quite a few raw SQL literals in the code that use ? as a placeholder, e.g. SELECT id FROM users WHERE name = ? But I get this error: DB query error: error: operator does not exist: character varying = ? I don't want to convert all my existing SQL from ? to postgres-style operators like $1 . Is there some way of having node-postgres accept the question marks instead, or an utility that can convert to postgres style params?

问题 I am getting the following error but I have counted things over and over again and everything appears to be fine. Anyone have any ideas on it ? Error: Warning : mysqli_stmt::bind_param() [mysqli-stmt.bind-param]: Number of variables doesn't match number of parameters in prepared statement in /home/ambnews/public_html/invoice/response.php on line 204 Code: // invoice customer information // billing $customer_name = $mysqli->real_escape_string($_POST['customer_name']); // customer name

问题 A mysqli_stmt does not have a query_params() function, I had to write my own. The parameter arry is bound to the statement with bind_param(). I need to specify the variable types dynamically. I could do that with something like: $sType = ''; foreach ($aParameters as $iIndex => $mParameter) { if (is_string($mParameter)) {$sType .= 's';} elseif ( is_int($mParameter)) {$sType .= 'i';} elseif ( is_float($mParameter)) {$sType .= 'd';} elseif ( is_null($mParameter)) {$sType .= 's';} elseif ( is

问题 I am a beginner at PDO, I was making a php function to return search results of flights, this is my code: $db = DB::getConnection(); $stmt = $db->prepare("SELECT * FROM `flights` WHERE `date` BETWEEN :befDate AND :aftDate AND `from` = :from AND `to` = :to AND `weight` >= :weight"); $stmt->bindParam(':befDate', $befDate, PDO::PARAM_STR); //$befDate = '2016-07-21'; $stmt->bindParam(':aftDate', $aftDate, PDO::PARAM_STR); //$aftDate = '2016-07-28'; $stmt->bindParam(':from', $from, PDO::PARAM_INT)

问题 I am trying to make a url shortening website. However, I am running into this error when I try clicking the submit input: Fatal error: Call to a member function bind_param() on boolean in C:\xampp\htdocs\index.php . I've seen others having this issue but never managed to fix it. Thanks in advance! <?php $db = new mysqli("localhost","root",""); if (isset($_POST['shorten'])) { //echo "Clicked"; $result = $db->prepare("INSERT INTO links VALUES('',?,'test')"); $result->bind_param('s', $_POST['url

问题 So far I have been using PDO->bindParam however while reading the manual I found PDO->bindValue from what I can tell PDO->bindValue passes by value where as PDO->bindParam passes by reference, is this the only difference? $modThread = db()->prepare("UPDATE `threads` SET `modtime` = UNIX_TIMESTAMP( ) WHERE `threadid` =:id LIMIT 1"); while(something) { $modThread->bindParam(':id', $thread); $modThread->execute(); //*******************HERE********************// } Again while reading the manual I

问题 If I run this I get the following error: Notice: Only variables should be passed by reference in /var/www/interface/register.php on line 11 Success I dont know how to fix that. It's still successful and the data is hashed in the database, but I don't want this notice. $sql = " INSERT INTO users (username, password) VALUES (:username, :password)"; $stmt = $conn->prepare($sql); $stmt->bindParam(':username', $_POST['username']); $stmt->bindParam(':password', password_hash($_POST['password'],