mysqli

问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 7 years ago . Which is better, MySQL or MySQLi? And why? Which should I use? I mean better not just in terms of performance, but any other relevant

问题 Im trying to display users from the database on the page after login but i keep getting an error message: Fatal error: Call to undefined function fetch_assoc() here is the code: <?php session_start(); ?> <link rel="stylesheet" href="form.css"> <div class="body content"> <div class="welcome"> <div class="alert alert-success"><?= $_SESSION['message'] ?></div> <img src="<?= $_SESSION['avatar'] ?>"><br /> Welcome <span class="user"><?= $_SESSION['username'] ?></span> <?php $mysqli = new mysqli(

问题 Im trying to display users from the database on the page after login but i keep getting an error message: Fatal error: Call to undefined function fetch_assoc() here is the code: <?php session_start(); ?> <link rel="stylesheet" href="form.css"> <div class="body content"> <div class="welcome"> <div class="alert alert-success"><?= $_SESSION['message'] ?></div> <img src="<?= $_SESSION['avatar'] ?>"><br /> Welcome <span class="user"><?= $_SESSION['username'] ?></span> <?php $mysqli = new mysqli(

问题 I'm quite new to PHP and MySQL and I try to learn how to change a code from PDO to MySQLi. Its about a remember me function with a securitytoken and identifier for a login system that I found in the web. I would like to learn and understand how I can change the code from PDO to MySQLi. I know in MySQLi there is a statement create and prepare, also I have to bind parameters and execute. But in this case, I don't know how to start anyway. $pdo = new PDO('mysql:host=localhost;dbname=dbname',

问题 I have used someone else's code that uses the ipaddress way. However, I would like to use a code that checks for the current userid and the id number. $ipaddress = md5($_SERVER['REMOTE_ADDR']); // here I am taking IP as UniqueID but you can have user_id from Database or SESSION /* Database connection settings */ $con = mysqli_connect('localhost','root','','database'); if (mysqli_connect_errno()) { echo "<p>Connection failed:".mysqli_connect_error()."</p>\n"; } /* end of the connection */ if

问题 <?php include_once("database.php"); ?> <?php include_once("header.php"); ?> <?php if ($_POST['submit'] ) { $food_name = $_POST['food_name']; $food_calories = $_POST['food_calories']; echo $food_name . $food_calories; if (!empty($food_name) && !empty($food_calories) ) { $query = 'INSERT INTO foods VALUES(0, $food_name, $food_calories)'; mysqli_query($con, $query) or die(mysqli_error($con)); echo 'added'; } else {echo'fail';} } else {echo'fa2oo';} ?> <h1> Please Fill out Form Below to Enter a

问题 So I made this script that should fetch an array using mysqli_fetch_array and mysqli_query it all works fine, and no error shows up, but then after I change something, using another function, for example, If I change the mood, nickname or whatever, it shows an error Warning: join(): Invalid arguments passed in Main.php on line 526 Iv'e been trying to fix this using a while loop and the same thing happens $info = mysqli_fetch_array(mysqli_query($con, "SELECT id, nickname, mood, credits, colour

问题 So I made this script that should fetch an array using mysqli_fetch_array and mysqli_query it all works fine, and no error shows up, but then after I change something, using another function, for example, If I change the mood, nickname or whatever, it shows an error Warning: join(): Invalid arguments passed in Main.php on line 526 Iv'e been trying to fix this using a while loop and the same thing happens $info = mysqli_fetch_array(mysqli_query($con, "SELECT id, nickname, mood, credits, colour

问题 I was working with Chris Veness' scripts from http://www.movable-type.co.uk I was trying to run a query against a MySQL database to return only rows that fall within a given radius, using his Bounding Circle script. As follows: <?php require 'inc/dbparams.inc.php'; // defines $dsn, $username, $password $db = new PDO($dsn, $username, $password); $db->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_OBJ); $lat = $_GET['lat']; // latitude of centre of bounding circle in degrees $lon = $_GET

问题 So this method works in inserting values to the table: $link = mysqli_connect("example.com","a","b","c"); $sql = 'INSERT INTO `table` (`field1`, `field2`) VALUES ("foo", "bar");'; mysqli_query($link, $sql); However, this method fails: $link = mysqli_connect("example.com","a","b","c"); function foobar(){ $sql = 'INSERT INTO `table` (`field1`, `field2`) VALUES ("foo", "bar");'; mysqli_query($link, $sql); } And this gives the error: Warning: mysqli_query() expects parameter 1 to be mysqli, null