使用php连接到数据库服务器

Question

I have written this piece of code to connect to MySQL server. However it does not seem to be work. Could someone enlighten me as to why this is the case?

    <?php
$username = "user";
$password = "password";
$hostname = "hostname"; 

//connection to the database
$dbhandle = mysql_connect($hostname, $username, $password) 
  or die("Unable to connect to MySQL");
  echo "Connected to MySQL<br>";

  $selected = mysql_select_db("asantec",$dbhandle) 
  or die("Could not select asantec");

  $result = mysql_query("SELECT * FROM books");

//fetch tha data from the database 
while ($row = mysql_fetch_array($result)) {
   echo "tile:".$row{'title'}." author:".$row{'author'}."price: ". //display the results
   $row{'price'}."<br>";
}
//close the connection
mysql_close($dbhandle);
?>

Answer 1

This should be basically the mysqli version of what you wrote.

<?php
    $username = "user";
    $password = "pass";
    $hostname = "creative.coventry.ac.uk";

    $mysqli = new mysqli($hostname, $username, $password, "asantec");

    $stmt = $mysqli->prepare("SELECT * FROM books;");
    $stmt->execute();
    $stmt->bind_result($id, $title, $author, $price); //Put all your expected variables here

    while ($stmt->fetch()) {
        echo $id.'<br />';
        echo $title.'<br />';
        echo $author.'<br />';
        echo $price.'<br /><br />';
    }

    $mysqli->close();
?>

Also, if you have any issues in the code you've posted, this will work. Check your DB credentials and the data you're querying.

Answer 2

Excuse me, I couldn't help but notice the Coventry University server being displayed on here which if I'm right to assume, you are a Coventry University student?

Do you have permission to be publishing and exposing such information about the university servers on here? This can lead to many security issues and can potentially cost the university a fortune to stop hackers infiltrating our databases.

Furthermore, you shouldn't be taking codes off of people on the internet if it is not stated as open source. This is an extremely serious case and you can very well be held accountable for level 3 plagiarism.

Answer 3

I too came across this, and due to the seriousness of the situation, even though I am no longer part of the Uni staff, I've still gone out of my way to report this to the Coventry university Academic Conduct Officer, who happen to take these issues very seriously.

Chris, you seem like a bright student, and if I'm correct you should be in your third and final year now. It baffles me as to why you'd put everything at jeopardy just to gain some help which you should be academically capable of doing yourself.

All the best,

Mike Morgan