PHP - Converting Mysql To Mysqli?

On the mainpage I am getting this error:   Fatal error: Call to a member function query() on a non-object in C:\xampp\htdocs\page\controller\function.php on line 393    

	$result = $db->query($query);

And on the admin section:   Notice: Undefined index: role in C:\xampp\htdocs\page\admin\header.php on line 7

Notice: Undefined index: role in C:\xampp\htdocs\page\admin\header.php on line 7

Fatal error: Undefined class constant 'site_url' in C:\xampp\htdocs\page\admin\header.php on line 8    

if ($_SESSION['role'] !== 'admin' and $_SESSION['role'] !== 'moderator'){header( 'Location:'.config::site_url.'index.php' );

Hello, 

I've been tasked with updating our code base from mysql to something that will work with php 7.  It's older code that was written by 2 or 3 individuals before me and it's not at all object oriented.  There are about 540 different files that I will end up having to edit to make it all up to date.  I'm not a very experienced programmer myself, and I'm in need of some guidance.  There are some files that have functions that call and use mysql queries three or four files deep and going through and editing one function leads me to having to update 4 or 5 other files which breaks stuff somewhere else down the road.  I was wondering if anyone has some suggestions on ways to make this process less painful.  The other thing is that by using PDO in a not OO style, it seems like I'm losing a lot of its benefits.  Should I consider using MYSQLi instead of PDO considering the circumstances?  Are there any resources that you could point me to in order to help me learn the skills I need to make it through this upgrade?  Thanks for the help!

Hi, I am trying to convert the register & login script from mysql to mysqli. I have converted the easy parts and have the connection to the database, but the following functions all need changing and I can't work out the correct solution mainly due to the deprecation of mysql_result()

The code that needs updating is
 

<?php
function user_count() {
	return mysql_result(mysql_query("SELECT COUNT(`user_id`) FROM `users` WHERE `active` = 1"), 0);
}

function users_online() {
	return mysql_result(mysql_query("SELECT COUNT(`user_id`) FROM `users` WHERE `logged_in` = 1"), 0);
}

function change_profile_image($user_id, $file_temp, $file_extn) {
	$file_path = 'images/profile/' . substr(md5(time()), 0, 10) . '.' . $file_extn;
	move_uploaded_file($file_temp, $file_path);
	mysql_query("UPDATE `users` SET `profile` = '" . mysql_real_escape_string($file_path) . "' WHERE `user_id` = " . (int)$user_id);
}

function has_access($user_id, $type) {
	$user_id 	= (int)$user_id;
	$type 		= (int)$type;
	
	return (mysql_result(mysql_query("SELECT COUNT(`user_id`) FROM `users` WHERE `user_id` = $user_id AND `type` = $type"), 0) == 1) ? true : false;
}

function activate($email, $email_code) {
	$email 		= mysql_real_escape_string($email);
	$email_code = mysql_real_escape_string($email_code);
	
	if (mysql_result(mysql_query("SELECT COUNT(`user_id`) FROM `users` WHERE `email` = '$email' AND `email_code` = '$email_code' AND `active` = 0"), 0) == 1) {
		mysql_query("UPDATE `users` SET `active` = 1 WHERE `email` = '$email'");
		return true;
	} else {
		return false;
	}
}

function user_exists($username) {
	$username = sanitize($username);
	$query = mysql_query("SELECT COUNT('user_id') FROM `users` WHERE `username` = '$username'");
	return (mysql_result($query, 0) == 1) ? true : false;
}

function email_exists($email) {
	$email = sanitize($email);
	return (mysql_result(mysql_query("SELECT COUNT(`user_id`) FROM `users` WHERE `email` = '$email'"), 0) == 1) ? true : false;
}

function user_id_from_username($username) {
	$username = sanitize($username);
	return mysql_result(mysql_query("SELECT `user_id` FROM `users` WHERE `username` = '$username'"), 0, 'user_id');
}

function user_id_from_email($email) {
	$email = sanitize($email);
	return mysql_result(mysql_query("SELECT `user_id` FROM `users` WHERE `email` = '$email'"), 0, 'user_id');
}

function login($username, $password) {
	$user_id = user_id_from_username($username);
	
	mysql_query("UPDATE `users` SET `logged_in` = 1 WHERE `user_id` = $user_id");

	$username = sanitize($username);
	$password = md5($password);
	
	return (mysql_result(mysql_query("SELECT COUNT(`user_id`) FROM `users` WHERE `username` = '$username' AND `password` = '$password'"), 0) == 1) ? $user_id : false;
}

?>

And here is what the converter gave me:

function user_count() {
return mysql_result(mysqli_query($GLOBALS["___mysqli_ston"], "SELECT COUNT(`user_id`) FROM `users` WHERE `active` = 1"), 0);
}

function users_online() {
return mysql_result(mysqli_query($GLOBALS["___mysqli_ston"], "SELECT COUNT(`user_id`) FROM `users` WHERE `logged_in` = 1"), 0);
}

function change_profile_image($user_id, $file_temp, $file_extn) {
    $file_path = 'images/profile/' . substr(md5(time()), 0, 10) . '.' . $file_extn;
    move_uploaded_file($file_temp, $file_path);
    mysql_query("UPDATE `users` SET `profile` = '" . mysql_real_escape_string($file_path) . "' WHERE `user_id` = " . (int)$user_id);
}

function has_access($user_id, $type) {
    $user_id     = (int)$user_id;
    $type         = (int)$type;
    
    return (mysql_result(mysql_query("SELECT COUNT(`user_id`) FROM `users` WHERE `user_id` = $user_id AND `type` = $type"), 0) == 1) ? true : false;
}

function activate($email, $email_code) {
    $email         = mysql_real_escape_string($email);
    $email_code = mysql_real_escape_string($email_code);
    
    if (mysql_result(mysql_query("SELECT COUNT(`user_id`) FROM `users` WHERE `email` = '$email' AND `email_code` = '$email_code' AND `active` = 0"), 0) == 1) {
        mysql_query("UPDATE `users` SET `active` = 1 WHERE `email` = '$email'");
        return true;
    } else {
        return false;
    }
}

function user_exists($username) {
    $username = sanitize($username);
    $query = mysql_query("SELECT COUNT('user_id') FROM `users` WHERE `username` = '$username'");
    return (mysql_result($query, 0) == 1) ? true : false;
}

function email_exists($email) {
    $email = sanitize($email);
    return (mysql_result(mysql_query("SELECT COUNT(`user_id`) FROM `users` WHERE `email` = '$email'"), 0) == 1) ? true : false;
}

function user_id_from_username($username) {
    $username = sanitize($username);
    return mysql_result(mysql_query("SELECT `user_id` FROM `users` WHERE `username` = '$username'"), 0, 'user_id');
}

function user_id_from_email($email) {
    $email = sanitize($email);
    return mysql_result(mysql_query("SELECT `user_id` FROM `users` WHERE `email` = '$email'"), 0, 'user_id');
}

function login($username, $password) {
    $user_id = user_id_from_username($username);
    
    mysql_query("UPDATE `users` SET `logged_in` = 1 WHERE `user_id` = $user_id");

    $username = sanitize($username);
    $password = md5($password);
    
    return (mysql_result(mysql_query("SELECT COUNT(`user_id`) FROM `users` WHERE `username` = '$username' AND `password` = '$password'"), 0) == 1) ? $user_id : false;
}

?>

Please could someone point me in the right direction here?     Also my site works perfectly well with MySQL, do I have to convert it to MySQLi?   Many Thanks   Paul If anyone knows how to solve this, it would be much appreciated. I already have a website template and would prefer to continue with mysqli instead of PDO.

Many Thanks

Paul

how i can make a insert using this fuctions I m learning php, as using this functions (mysqli abstract) but after update wont work any more.

/** insert data array */
public function insert(array $arr)
{

if ($arr)
{
$q = $this->make_insert_query($arr);
$return = $this->modifying_query($q);
$this->autoreset();
return $return;
}
else
{
$this->autoreset();
return false;
}
}

complement

/** insert query constructor */
protected function make_insert_query($data)
{
$this->get_table_info();
$this->set_field_types();
if (!is_array(reset($data)))
{
$data = array($data);
}
$keys = array();
$values = array();
$keys_set = false;
foreach ($data as $data_key => $data_item)
{
$values[$data_key] = array();
$fdata = $this->parse_field_names($data);
foreach ($fdata as $key => $val)
{
if (!$keys_set)
{
if (isset($this->field_type[$key]))
{
$keys[] = '`' . $val['table'] . '`.`' . $val['field'] . '`';
}
else
{
$keys[] = '`' . $val['field'] . '`';
}
}
$values[$data_key][] = $this->escape($val['value'], $this->is_noquotes($key), $this->field_type($key), $this->is_null($key),
$this->is_bit($key));
}
$keys_set = true;
$values[$data_key] = '(' . implode(',', $values[$data_key]) . ')';
}
$ignore = $this->ignore ? ' IGNORE' : '';
$delayed = $this->delayed ? ' DELAYED' : '';
$query = 'INSERT' . $ignore . $delayed . ' INTO `' . $this->table . '` (' . implode(',', $keys) . ') VALUES ' . implode(',',
$values);
return $query;
}

before update this class i used to insert data like this

$db = Sdba::table('users');
$data = array('name'=>'adam');
$db->insert($data);

this method of insert dont works on new class. if i try like this i got empty columns and empty values. thanks for any help complete class download http://goo.gl/GK3s4E

I have a prepared statement class for MYSQL, since in PHP 5 this is now changing to mysqli; I'm looking for some help in changing the code from my existing class to the new mysqli.   I have done some research online about changing from mysql to mysqli but the changes I made seems to only cause issues with connecting to the database.   After many hours of changing the existing file using the research online, I've decided to start again and ask others if they would be ever so kind to help this noob out and point out which parts of the script needs to be changed.    Thank you for reading.   

<?php
class Database {
 
    private $host;
    private $user;
    private $pass;
    private $name;
    private $link;
    private $error;
    private $errno;
    private $query;
 
    function __construct($host, $user, $pass, $name = "", $conn = 1) {
        $this -> host = $host;
        $this -> user = $user;
        $this -> pass = $pass;
        if (!empty($name)) $this -> name = $name;      
        if ($conn == 1) $this -> connect();
    }
 
    function __destruct() {
        @mysql_close($this->link);
    }
 
    public function connect() {
        if ($this -> link = mysql_connect($this -> host, $this -> user, $this -> pass, TRUE)) {
            if (!empty($this -> name)) {
                if (!mysql_select_db($this -> name, $this->link)) $this -> exception("Could not connect to the database!");
            }
        } else {
            $this -> exception("Could not create database connection!");
        }
    }
 
    public function close() {
        @mysql_close($this->link);
    }
 
    public function query($sql) {
        if ($this->query = @mysql_query($sql, $this->link)) {
            return $this->query;
        } else {
            $this->exception("Could not query database!");
            return false;
        }
    }
 
    public function num_rows($qid) {
        if (empty($qid)) {         
            $this->exception("Could not get number of rows because no query id was supplied!");
            return false;
        } else {
            return mysql_num_rows($qid);
        }
    }
 
    public function fetch_array($qid) {
        if (empty($qid)) {
            $this->exception("Could not fetch array because no query id was supplied!");
            return false;
        } else {
            $data = mysql_fetch_array($qid);
        }
        return $data;
    }
 
    public function fetch_array_assoc($qid) {
        if (empty($qid)) {
            $this->exception("Could not fetch array assoc because no query id was supplied!");
            return false;
        } else {
            $data = mysql_fetch_array($qid, MYSQL_ASSOC);
        }
        return $data;
    }
 
public function fetch_object($qid) {
        if (empty($qid)) {
            $this->exception("Could not fetch object assoc because no query id was supplied!");
            return false;
        } else {
            $data = mysql_fetch_object($qid);
        }
        return $data;
    }
 
    public function fetch_all_array($sql, $assoc = true) {
        $data = array();
        if ($qid = $this->query($sql)) {
            if ($assoc) {
                while ($row = $this->fetch_array_assoc($qid)) {
                    $data[] = $row;
                }
            } else {
                while ($row = $this->fetch_array($qid)) {
                    $data[] = $row;
                }
            }
        } else {
            return false;
        }
        return $data;
    }
 
    public function last_id() {
        if ($id = mysql_insert_id()) {
            return $id;
        } else {
            return false;
        }
    }
 
    private function exception($message) {
        if ($this->link) {
            $this->error = mysql_error($this->link);
            $this->errno = mysql_errno($this->link);
        } else {
            $this->error = mysql_error();
            $this->errno = mysql_errno();
        }
        if (PHP_SAPI !== 'cli') {
        ?>
 
            <div class="alert-bad">
                <div>
                    Database Error
                </div>
                <div>
                    Message: <?php echo $message; ?>
                </div>
                <?php if (strlen($this->error) > 0): ?>
                    <div>
                        <?php echo $this->error; ?>
                    </div>
                <?php endif; ?>
                <div>
                    Script: <?php echo @$_SERVER['REQUEST_URI']; ?>
                </div>
                <?php if (strlen(@$_SERVER['HTTP_REFERER']) > 0): ?>
                    <div>
                        <?php echo @$_SERVER['HTTP_REFERER']; ?>
                    </div>
                <?php endif; ?>
            </div>
        <?php
        } else {
                    echo "MYSQL ERROR: " . ((isset($this->error) && !empty($this->error)) ? $this->error:'') . "\n";
        };
    }
 
}
?>

Hi there,   I'm new to all this so I've been following instructions from various sites and books.  So far I have installed Apache, PHP and mysql, however when I browse to localhost/test.php (created to view phpinfo() through the browser) i can't see mysql or mysqli only the mysqlnd.   Here is an overview of software I've installed, OS and things I've added so far;   OS ver Windows7 Professional 32-bit VM

Hi,


I have a problem with some code not working.

I need it to get the data from a mysql database and then export it as a json array in the format of id , title, author, date, imageUrl, text. (Please not that these are all variables )

PHP CODE:
Code: [Select]
<?php
$link = mysql_connect('localhost', 'root', '');
if (!$link) {
    die('Could not connect: ' . mysql_error());
}
echo 'Connected successfully';

$arr = array();
$rs = ("SELECT `id`, `title`, `author`, `date`, `imageUrl`, `text` FROM `items`");
 
while($obj = mysql_query($rs)) {
$arr[0] =  $obj->id;
$arr[1] =  $obj->title;
$arr[2] =  $obj->author;
$arr[3] =  $obj->date;
$arr[4] =  $obj->imageUrl;
$arr[5] =  $obj->text;
}
 
echo '{"items":'.json_encode($arr).'}';
?>

Thanks For Your Help
borden0108

guys, im having a problem here...

i tried too many ways to convert dates in american format, to brazilian format, but no one is working...

how can i do that, to convert it to dd/mm/yyyy (it comes from my db in mysql)...
 

Hello everyone,

For two weeks now, I'm trying to get this database connection in my query. Can someone give me a solution and tell me what I've done wrong? Am I overlooking something?

<?php

class Mysql{
public function connect(){
$mysqli = new mysqli('localhost','root','','login');
}
}

class Query extends Mysql{
public function runQuery(){
$this->result = parent::connect()->query("select bla bla from bla bla");
}
}

$query = new Query;
$query->runQuery();

?>

When running the following code i get the error:

Call to undefined method mysqli::errno() 

the code:
$conn = new mysqli(HOST, USER, PASSWORD, DATABASE);
if ($conn->errno() !== 0)
{
$msg = $conn->error();
throw new connErrorException($msg, 'Connect');
}

I am fairly new to classes but as i understand it this should be correct. I am using mysql 5.1 so mysqli is on by default. I have even checked the php ini and everything looks fine there in respect to this. Any advice?

Hi, The following code is what I want in that it creates a menu and I can select and display a table row. I still need to use that selection to update the "lastused". I really appreciate your help.

 

<!DOCTYPE><html><head><title>email menu</title></head>     
    <body><center>
    <form name="form" method="post" action="">
    <?php
    $con=mysqli_connect("localhost","root","cookie","homedb");
    //============== check connection
    if(mysqli_errno($con))
    {echo "Can't Connect to mySQL:".mysqli_connect_error();}
    else
    {echo "Connected to mySQL</br>";}
       //This creates the drop down box
    echo "<select name= 'target'>";
    echo '<option value="">'.'--- Select email account ---'.'</option>';
    $query = mysqli_query($con,"SELECT target FROM emailtbl");
    $query_display = mysqli_query($con,"SELECT * FROM emailtbl");
    while($row=mysqli_fetch_array($query))
    {echo "<option value='". $row['target']."'>".$row['target']
    .'</option>';}
    echo '</select>';
    ?>
    <input type="submit" name="submit" value="Submit"/><!-- update "lastused" using selected "target"-->
    </form></body></html>

<!DOCTYPE><html><head><title>email menu</title></head>    
    <body><center>
    <?php
    $con=mysqli_connect("localhost","root","cookie","homedb");
    if(mysqli_errno($con))
    {echo "Can't Connect to mySQL:".mysqli_connect_error();}
        if(isset($_POST['target']))
      {
    $name = $_POST['target'];
    $fetch="SELECT target,username,password,emailused,lastused, purpose, saved FROM emailtbl WHERE target = '".$name."'";
    $result = mysqli_query($con,$fetch);
    if(!$result)
    {echo "Error:".(mysqli_error($con));}
   $lastused = "CURDATE()"; // update "lastused" using selected "target"
    //display the table
    echo '<table border="1">'.'<tr>'.'<td bgcolor="#ccffff align="center">'. 'Email menu'. '</td>'.'</tr>';
    echo '<tr>'.'<td>'.'<table border="1">'.'<tr>'.'<td bgcolor="#ccffff align="center">'.'target'.'</td>'.'<td bgcolor="#ccffff align="center">'.'username'.'</td>'.'<td bgcolor="#ccffff align="center">'.'password'.'</td>'.'<td bgcolor="#ccffff align="center">'.'emailused'.'</td>'.'<td bgcolor="#ccffff align="center">'.'lastused'.'</td>'.'<td bgcolor="#ccffff align="center">'.'purpose'. '</td>'.'<td bgcolor="#ccffff align="center">'. 'saved' .'</td>'.'</tr>';
    while($data=mysqli_fetch_row($result))
    {echo ("<tr><td>$data[0]</td><td>$data[1]</td><td>$data[2]</td><td>$data[3]</td><td>$data[4]</td><td>$data[5]</td><td>$data[6]</td></tr>");}
    echo '</table>'.'</td>'.'</tr>'.'</table>';
      }
    ?>
       </body></html>



 

hello , I'm starting to use mysqli and i have few questions.

is there a guide for mysqli?

and how do i use this functions at mysqli ?
mysql_num_rows
mysql_query
mysql_fetch_assoc
mysql_fetch_array

thanks , Mor.

I am using mysqli, OO, to connect to MySQL.

I have only today started looking at this and am used to:
Code: [Select]
<?php
$con = mysql_connect();//etc
mysql_close($connection);
?>

Am I right that with mysqli (OO) that I don't need to set a connection variable wither when connecting or closing??
Code: [Select]
<?php
mysqli::connect();//etc
mysqli::close();
?>

What about with multiple databases, does mysqli keep track for me, as I am used to this:
Code: [Select]
<?php
$con1 = mysql_connect();//db1
$con2 = mysql_connect();//db2
?>
//etc

I dont know whether the statement is correct.....i just tried it.....and it didn't work.

   $stmt->bind_param('ssiiiss',$_POST['name'],$_POST['email'],$_POST['d'],$_POST['m'],$_POST['y'],$_POST['add'],$_POST['phone']);

here my first two values are strings and next 2 tiny int's next is int and last 2 again strings.

Ok I am trying to use mysqli instead of the usual mysql.  Mysql would be outdated.
With mysqli, sgl-injection is impossible if you use the "?" in those codes.

I would normally use a function but  I've made a simple script to find the error.

I use $parameters and $sql because these are the data I need to give as parameters to the function, so I used it here too
but without the function actually.

Code: [Select]
ini_set('display_errors',1); // 1 == aan , 0 == uit
error_reporting(E_ALL | E_STRICT);
# sql debug
define('DEBUG_MODE',true);  // true == aan, false == uit


$userid = 11;
$lang = 1;
$newLink = "testing123";

$db_host = "localhost";
$db_gebruiker = "root";
$db_wachtwoord = '';
$db_naam = "projecteasywebsite";

$sql= "INSERT tbl_link(userid,linkcat,linksubid,linklang,linkactive,linktitle)  VALUES(?, ?, ?, ?, ?, ?)";
$parameters = '"iiisis", $userid, 1, 0, $lang, 1, $newLink';

echo $parameters;

$mysqli = new mysqli($db_host, $db_gebruiker, $db_wachtwoord, $db_naam);
$stmt = $mysqli->prepare($sql);

$stmt->bind_param($parameters); 

$stmt->execute();

echo "<br><br>". mysqli_connect_errno();
echo "<br><br>". mysqli_report(MYSQLI_REPORT_ERROR);

$stmt->close();
$mysqli->close();


I got Wrong parameter count for mysqli_stmt::bind_param() 

So naturally a problem when we execute : Warning: mysqli_stmt::execute() [mysqli-stmt.execute]: (HY000/2031): No data supplied for parameters in prepared statement    ($stmt->execute()

Is someone using mysqli too ?