so i have this deletefile function and i want it to go back to tyhe home page after 3 seconds automaticly
public function deleteFile($id)
{
try {
$query = "SELECT naam, bestand_path FROM bestanden ";
$query .= "WHERE id='$id'";
$result = $this->datahandler->readsData($query);
$results = $result->fetchAll();
foreach ($results as $row) {
$filename = $row['naam'];
}
$file = getcwd() . "/uploads/" . $filename;
//echo "Absolute Path To Directory is: ";
//echo $delfile;
***if (unlink($file)) {
echo $filename . ' was deleted successfully!';
header('Location: ' . SERVER_URL . '/Home/');***
} else {
echo 'There was a error deleting ' . $filename;
}
$query = "DELETE FROM bestanden ";
$query .= "WHERE id=$id";
$result = $this->datahandler->deleteData($query);
} catch (PDOException $e) {
echo "Fout opgetreden";
}
}
its about the one with the stars around it.
thank you
Related
I'm working on a project to update a daatabase of products (price and stock) in prestashop based on data from a vending program. I'm doing this using PHP code and a MySQL conneectio to the DB.
The problem is that there is about 58.000 products and it seems to take very long to update all products.
Here is my code:
<?php
$host = '127.0.0.1';
$uname = '*******';
$pwd = '*******';
$db = "*******";
$con = mysqli_connect($host,$uname,$pwd,$db) or die("connection failed");
echo 'Updating init...' . "<br>";
//Create an instance of the class Update to get and update the data
$update = new Update();
try
{
// Get the product list from prestashop's DB
$productsFromPS = $update->getProductListFromPS($con);
// Cycle through all the product IDs
foreach ($productsFromPS as $product)
{
// Id of the product
$id = (int) $product['id_product'];
// Price from PS
$pricePS = (float) $product['price'];
// Get the product's stock from PS
$stockPS = $update->getProductStockFromPS($con, $id);
// Physical and reserved quantities in PS
$physQty = $stockPS['physical_quantity'];
$resQty = $stockPS['reserved_quantity'];
// Get product's price and stock from Vendus
$priceAndStockVendus = $update->getPriceAndStockFromVendus($id);
// Price from Vendus
$priceVendus = (float) $priceAndStockVendus[0];
// Tools for float compardsion
$zero = (float) 0.00;
$epsilon = (float) 0.00001;
// If the price in Vendus is 0, put 0 to stock in PS
if(!(abs($priceVendus-$zero) < $epsilon))
$stockVendus = (int) $priceAndStockVendus[1];
else
$stockVendus = 0;~
// If the prices do not match, update price
if(!(abs($pricePS-$priceVendus) < $epsilon))
$update->updatePrice($con, $id, $priceVendus);
// If the stocks do not matcth, update stock
if ($stockVendus!=$physQty)
$update->updateStock($con, $id, $stockVendus, $resQty);
}
}
catch (Exception $ex) {
// Shows a message related to the error
echo 'Other error: <br />' . $ex->getMessage();
}
/*
Class which method to get and update data
*/
class Update
{
public function getProductListFromPS ($con)
{
try
{
$sql_q = mysqli_query($con,"SELECT `id_product`, `price` FROM `ps_product` ORDER BY `id_product` ASC");
$output = "";
if($sql_q)
{
while($result = mysqli_fetch_assoc($sql_q))
{
$output[] = $result;
//echo $result['id_product'] . "<br>";
}
if($output)
{
//echo '4: ' . $output[4]['id_product'] . "<br>";
}
else
{
echo "empty ressult set <br>";
}
}
else
{
echo 'Invalid query: ' . mysqli_error() . "<br>";
}
return $output;
}
catch (Exception $ex) {
// Shows a message related to the error
echo 'Error: <br />' . $ex->getMessage() . '<br>';
}
}
public function getProductStockFromPS ($con, $id)
{
try
{
$sql_q = mysqli_query($con,"SELECT `quantity`, `physical_quantity`, `reserved_quantity` FROM `ps_stock_available` WHERE `id_product` = $id");
$output = "";
if($sql_q)
{
while($result = mysqli_fetch_assoc($sql_q))
{
$output[] = $result;
//echo $result['id_product'] . "<br>";
}
if($output)
{
//echo 'qty: ' . $output[0]['quantity'] . "<br>";
//echo 'phys qty: ' . $output[0]['physical_quantity'] . "<br>";
//echo 'res qty: ' . $output[0]['reserved_quantity'] . "<br>";
}
else
{
echo "empty ressult set <br>";
}
}
else
{
echo 'Invalid query: ' . mysqli_error() . "<br>";
}
return $output[0];
}
catch (Exception $ex) {
// Shows a message related to the error
echo 'Error: <br />' . $ex->getMessage();
}
}
public function getPriceAndStockFromVendus ($id)
{
try
{
$url = 'https://www.vendus.pt/ws/v1.1/products/';
$apiKey = '***********';
$method = 'GET';
$params = array(
'reference' => $id,
);
$url .= '?' . http_build_query($params);
$curl = curl_init($url);
curl_setopt($curl, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
curl_setopt($curl, CURLOPT_USERPWD, $apiKey);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_CUSTOMREQUEST, $method);
//echo 'URL to Vendus - ' . $url . '<br />';
$result = curl_exec($curl);
$resultArray = json_decode($result, true);
curl_close($curl);
return array($resultArray[0]['gross_price'], $resultArray[0]['stock']);
}
catch (Exception $ex) {
// Shows a message related to the error
echo 'Error: <br />' . $ex->getMessage();
}
}
public function updatePrice ($con, $id, $price)
{
try
{
$sql_q = mysqli_query($con,"UPDATE `ps_product` SET `price` = '$price' WHERE `id_product` = '$id'");
$sql_q = mysqli_query($con,"UPDATE `ps_product_shop` SET `price` = '$price' WHERE `id_product` = '$id' AND `id_shop` = '1'");
if($sql_q)
{
//echo $sql_q;
}
else
{
echo 'Invalid query: ' . mysqli_error($con) . "\n";
}
echo 'Price updated (' . $id . ')' . '<br />';
}
catch (Exception $ex) {
// Shows a message related to the error
echo 'Error: <br />' . $ex->getMessage();
}
}
public function updateStock ($con, $id, $stock, $resQty)
{
try
{
$newPhysQty = $stock;
if ($newPhysQty!=0)
$newQty = $newPhysQty - $resQty;
else
$newQty = 0;
$sql_q = mysqli_query($con,"UPDATE `ps_stock_available` SET `physical_quantity` = '$newPhysQty', `quantity` = '$newQty' WHERE `id_product` = '$id'");
if($sql_q)
{
//echo $sql_q;
}
else
{
echo 'Invalid query: ' . mysqli_error($con) . "\n";
}
echo 'Stock updated(' . $id . ')' . '<br />';
}
catch (Exception $ex) {
// Shows a message related to the error
echo 'Other error: <br />' . $ex->getMessage();
}
}
}
?>
The plan is to have this code run at certain intervals to keep the DB updated.
Am I doing something wrong? Is there a faster way to do this?
This code is running on a server with 2GB of RAM and not a very fast processor. Should it be ruinning on a computer with higher specs?
I will appreciate any remarks/critcs about the code and tips on how to improve it.
Thanks in advance! ;)
EDIT: It appears running the code produces a 500 Internal Server Error, any idea what could be causing this? If I run the foreach only once it doesn't occur. How can i check the error in detail? I have CPannel as the control panel for the server.
I have this code and in "SELECT * FROM Blogi WHERE PostID=".
How to get each line separately so that takes postedBY, title, date, content by PostID
<?php
try{
$Blog = $conn->prepare("SELECT * FROM Blogi WHERE PostID=");
$Blog->execute();
}catch(PDOException $e){
echo $e->getMessage();
}
$fetch = $Blog->fetchAll();
$usercount = $Blog->rowCount();
if($usercount > 0){
foreach($fetch as $f){
$PostID = $f['PostID'];
$PostedBY = $f['PostedBY'];
$Title = $f['Title'];
$Date = $f['Date'];
$Content = $f['Content'];
}
}else{
session_destroy();
header('location: index.php');
}
?>
I have very bad English, so I don't know anyone can understand this.
How to do it further this postID="" to that he would start to work?
You have already done it in foreach loop... so add a line for output like... Also you aren't sending any PostID value to your query, be sure that you are sending a value for it.
foreach($fetch as $f){
$PostID = $f['PostID'];
$PostedBY = $f['PostedBY']
$Title = $f['Title'];
$Date = $f['Date'];
$Content = $f['Content'];
echo $PostID . " " . $Title . " " . $Date . " " . $Content . "<br />";
}
The function is fetching data from the database, but the issue is, it is not fetching the next row after printing the first row.
Kindly check and tell me what I'm doing wrong?
Public function Return_Config($P_name, $WW, $KPI) {
log_message('debug', 'hd');
log_message('debug', $P_name . ' ' . $WW . ' ' . $KPI);
$P_name .= '_one_voice_perf_measured';
$select_query = "SELECT config FROM $P_name WHERE KPI = '$KPI' AND Config = '$WW'";
//echo $select_query;
$query = $this->db->query($select_query);
if ($query->row() > '0') {
return $query->row()->config;
} else {
return 'Not Measured';
}
}
It is going directly to the else part. please help
This is because you are using ->row() instead use ->result(), like:
Public function Return_Config($P_name, $WW, $KPI)
{
log_message('debug', 'hd');
log_message('debug', $P_name . ' ' . $WW . ' ' . $KPI);
$P_name.= '_one_voice_perf_measured';
$select_query = "SELECT config FROM $P_name WHERE KPI = '$KPI' AND Config = '$WW'";
// echo $select_query;
$query = $this->db->query($select_query);
if (!empty($query->result()))
{
return $query->result();
}
else
{
return 'Not Measured';
}
}
More details at https://www.codeigniter.com/userguide3/database/results.html
try this
Public function Return_Config($P_name,$WW,$KPI){
log_message('debug','hd');
log_message('debug', $P_name.' '.$WW.' '.$KPI);
$P_name .= '_one_voice_perf_measured';
$select_query = "SELECT config FROM $P_name WHERE KPI = '$KPI' AND Config = '$WW'";
//echo $select_query;
$query = $this->db->query($select_query)->row_array();
if (!empty($query)){
return query['config'];
}
else{
return 'Not Measured' ;
}
}
I am making a CRUD system for blog publications, but it's kinda strange, another developer (with more experience) looked to my coded and for him it's all right too, but this error (Notice: Trying to get property of non-object in C:\xampp\htdocs\genial\painel\inc\database.php on line 32) remains appearing.
My database code:
<?php
mysqli_report(MYSQLI_REPORT_STRICT);
function open_database() {
try {
$conn = new mysqli(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME);
return $conn;
} catch (Exception $e) {
echo $e->getMessage();
return null;
}
}
function close_database($conn) {
try {
mysqli_close($conn);
} catch (Exception $e) {
echo $e->getMessage();
}
}
function find( $table = null, $id = null ) {
$database = open_database();
$found = null;
try {
if ($id) {
$sql = "SELECT * FROM" . $table . " WHERE id = " . $id;
$result = $database->query($sql);
if ($result->num_rows > 0) {
$found = $result->fetch_assoc();
}
}
else {
$sql = "SELECT * FROM " . $table;
$result = $database->query($sql);
if ($result->num_rows > 0) {
$found = $result->fetch_all(MYSQLI_ASSOC);
}
}
} catch (Exception $e) {
$_SESSION['message'] = $e->GetMessage();
$_SESSION['type'] = 'danger';
}
close_database($database);
return $found;
}
function find_all( $table ) {
return find($table);
}
function save($table = null, $data = null) {
$database = open_database();
$columns = null;
$values = null;
//print_r($data);
foreach ($data as $key => $value) {
$columns .= trim($key, "'") . ",";
$values .= "'$value',";
}
$columns = rtrim($columns, ',');
$values = rtrim($values, ',');
$sql = "INSERT INTO " . $table . "($columns)" . " VALUES " ($values);";
try {
$database->query($sql);
$_SESSION['message'] = 'Registro cadastrado com sucesso.';
$_SESSION['type'] = 'success';
} catch (Exception $e) {
$_SESSION['message'] = 'Nao foi possivel realizar a operacao.';
$_SESSION['type'] = 'danger';
}
close_database($database);
}
function update($table = null, $id = 0, $data = null) {
$database = open_database();
$items = null;
foreach ($data as $key => $value) {
$items .= trim($key, "'") . "='$value',";
}
$items = rtrim($items, ',');
$sql = "UPDATE " . $table;
$sql .= " SET $items";
$sql .= " WHERE id=" . $id . ";";
try {
$database->query($sql);
$_SESSION['message'] = 'Registro atualizado com sucesso.';
$_SESSION['type'] = 'success';
}
catch (Exception $e) {
$_SESSION['message'] = 'Nao foi possivel realizar a operacao.';
$_SESSION['type'] = 'danger';
}
close_database($database);
}
Sorry if it's not right idled.
I put an space on the code after the "FROM" at
$sql = "SELECT * FROM" . $table . " WHERE id = " . $id;
The error remains the same but know on line 36 that is:
if ($result->num_rows > 0) {
$found = $result->fetch_all(MYSQLI_ASSOC);
}
Turned the code on line 36 to:
$if (result = $database->query($sql)) {
The error disappeared, others problems not relative to this question happened.
Just in case this question isn't closed as off-topic -> typo generated, I'd better provide an acceptable answer.
Add a space between FROM and $table in your SELECT query.
Check for a non-false result from your query.
Your new code could look like this:
$sql = "SELECT * FROM `$table`";
if ($id) {
// assuming id has been properly sanitized
$sql .= " WHERE id=$id"; // concatenate with WHERE clause when appropriate
}
if ($result = $database->query($sql)) { // only continue if result isn't false
if ($result->num_rows) { // only continue if one or more row
$found = $result->fetch_all(MYSQLI_ASSOC); // fetch all regardless of 1 or more
}
}
$sql = "INSERT INTO " . $table . "($columns)" . " VALUES " ($values);"; has too many double quotes in it -- you can tell by how Stack Overflow highlights the characters. I could say that you could clean up the syntax, but it would ultimately be best to scrap your script and implement prepared statements.
I am trying to execute the function below but does not display anything.
function displayNr($x){
$sql="SELECT D4741 FROM table_x WHERE D4711='".$x."';
if (!$result = odbc_exec($pconn, $sql)) {
echo "Query error! ODBC: ", odbc_error();
} else {
while ($row = odbc_fetch_array($result)) {
echo $row["D4741"] . "\n";
}
}
}
displayNr('name');
However, if I remove the function it works correctly:
x='name';
$sql="SELECT D4741 FROM table_x WHERE D4711='".$x."';
if (!$result = odbc_exec($pconn, $sql)) {
echo "Query error! ODBC: ", odbc_error();
} else {
while ($row = odbc_fetch_array($result)) {
echo $row["D4741"] . "\n";
}
}
What could be the problem?
$pconn is not set in the function.
in the function, $pconn is a new local variable (with a scope of the function) and is not the same $pconn defined outside the function. pass it in as a parameter:
function displayNr($x,$pconn){
$sql="SELECT D4741 FROM table_x WHERE D4711='".$x."';
if (!$result = odbc_exec($pconn, $sql)) {
echo "Query error! ODBC: ", odbc_error();
} else {
while ($row = odbc_fetch_array($result)) {
echo $row["D4741"] . "\n";
}
}
}
displayNr('name');
watch out for SQL injection!!! your code is a perfect example of what not to do!!:
$sql="SELECT D4741 FROM table_x WHERE D4711='".$x."';
see this: SQL Injection or just google it
function displayNr($x, $pconn)
{
$sql = "SELECT D4741 FROM table_x WHERE D4711='" . $x . "'"; //here " is remaining
if (!$result = odbc_exec($pconn, $sql)) {
echo "Query error! ODBC: ", odbc_error();
} else {
while ($row = odbc_fetch_array($result)) {
echo $row["D4741"] . "\n";
}
}
}
displayNr('name');