So I'm trying to run a query in PHP and while the query has no errors itself (or so it seems), the editor sees an error in an "echo" statement. The code is this:
<?php
include("include/session.php");
?>
<?php
$db = new PDO('mysql:host=localhost;dbname=cvtool;charset=utf8', 'user', 'pass'); // change these to your own database details
$db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); // later, change ERRMODE_WARNING to ERRMODE_EXCEPTION so users wont see any errors
$db->setAttribute(PDO::ATTR_EMULATE_PREPARES, false);
$department = isset($_GET['department'])? $_GET['department']: null;
$sql = 'SELECT *
FROM education
WHERE school LIKE ?;
$q = $conn->prepare($sql);
$q->execute(array('%$department%');
$q->setFetchMode(PDO::FETCH_ASSOC);
while ($r = $q->fetch()) {
echo sprintf('%$department', $r['school']);
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<!--The viewport tag is used in order to scale the page properly inside any screen size -->
<meta charset="utf-8" name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<title>CV Tool</title>
<link rel="shortcut icon" href="images/favicon.ico" />
<link rel="stylesheet" href="css/main.css"/>
<!--Import JQuery from stored file -->
<script src="js/jquery-1.11.1.min.js"></script>
<!--Import JQuery from Google's Content Delivery Network -->
<!--<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js">-->
<link href='http://fonts.googleapis.com/css?family=PT+Sans:400,700' rel='stylesheet' type='text/css'>
<script type="text/javascript" src="js/menu.js"></script>
<script type="text/javascript" src="js/backToTop.js"></script>
</head>
<body>
<!--Big wrapper contains the whole site (header,navigation menu,....,footer-->
<div id="big_wrapper">
<header id="top_header">
<img src="images/cvlogo.png">
</header>
<br>
<nav class="clearfix">
<ul class="clearfix">
<li>Home</li>
<?php
/**
* User has already logged in, so display relavent links, including
* a link to the admin center if the user is an administrator.
*/
if($session->logged_in){
echo "<li>Search</li>"
."<li>My CV(s)</li>"
."<li>My Account</li>"
;
echo "<li>Logout</li>";
}
else
?>
</ul>
Menu
</nav>
<section id="main_section">
<table class="table table-bordered table-condensed">
<thead>
<tr>
<th>Department</th>
</tr>
</thead>
<tbody>
<?php while ($r = $q->fetch()): ?>
<tr>
<td><?php echo htmlspecialchars($r['school'])?></td>
</tr>
<?php endwhile; ?>
</section>
<footer id="the_footer">
City CV Tool 2014
</footer>
</div>
</body>
</html>
The problem is that no matter how I change it, it still gives me an error. The error is at these specific lines:
while ($r = $q->fetch()) {
echo sprintf('%$department', $r['school']);
}
The error might be just something missing or something extra that I put without realizing it. I know the code is about a very specific case, but still any help is appreciated.
You never close the following string variable :
$sql = 'SELECT *
FROM education
WHERE school LIKE ?;
Related
This is a fairly straight forward DB request, the array 'data' display's correctly when using the pre_r() function but I'm running into an issue with the HTML table side of this, I can't get it to display any records. I'm missing something obvious here that is eluding me, any help?
<?php
$mysqli= new mysqli('localhost', 'username', 'password', 'DB') or die(mysqli_error($mysqli));
$data = $mysqli -> query("SELECT * FROM line_job WHERE JOB_NO=36934 AND LINE_NO=2") or die($mysqli->error);
pre_r($data ->fetch_assoc()); //recordset array
function pre_r( $array ) {
echo '<pre>';
print_r($array);
echo '</pre>';
}
?>
<!doctype html>
<html lang="en">
<html>
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<!-- Bootstrap CSS -->
<link rel="stylesheet" src="/css/bootstrap.min.css" >
<link href="/css/bootstrap.css" rel="stylesheet" type="text/css">
<title>[![enter image description here][1]][1]Detail</title>
</head>
<body>
<div class="row justify-content-center">
<div class="container">
<table class="table">
<thead>
<tr>
<th>Status</th>
<th>Job Type</th>
<th>Resp. Party</th>
</tr>
</thead>
<?php
while ($data = $data->fetch_assoc()): ?>
<tr>
<td><?php echo $data['STATUS'];?></td>
<td><?php echo $data['JOB_TYPE'];?></td>
<td><?php echo $data['RESP_PRTY'];?></td>
</tr>
<?php endwhile;?>
</table>
</div>
</div>
</body>
</html>
$mysqli ->query() returns a mysqli_result object. This object has a pointer pointing to the first record. Everytime you call fetch_assoc() on it, it returns a single record and increments the pointer by one to point to the next row OR returns NULL if there are not more rows.
Obviously, your Mysql query returns one row. By the time you call $data->fetch_assoc() the second time, there are no more rows left to fetch in the $data.
I am trying to send a value to my mysql database, I am very new to php/bootstrap programming and I've tried everything but most of the guides are beyond my understanding. Please guide me in the right path so on the button click the button will update the specific database.
Here's what the button click will do:
on Uninstall button click it will send update the database like
UPDATE activate="No" FROM software WHERE uid(or id)="same id of the row where the button is clicked" [I know this mysql query is wrong]
Here's my code:
<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Control Panel</title>
<!-- Bootstrap -->
<link href="css/bootstrap.min.css" rel="stylesheet">
<!-- Font Awesome -->
<link href="css/font-awesome.min.css" rel="stylesheet">
<!-- NProgress -->
<link href="css/nprogress.css" rel="stylesheet">
<!-- iCheck -->
<link href="css/green.css" rel="stylesheet">
<!-- Datatables -->
<link href="css/dataTables.bootstrap.min.css" rel="stylesheet">
<link href="css/buttons.bootstrap.min.css" rel="stylesheet">
<link href="css/fixedHeader.bootstrap.min.css" rel="stylesheet">
<link href="css/responsive.bootstrap.min.css" rel="stylesheet">
<link href="css/scroller.bootstrap.min.css" rel="stylesheet">
<!-- Custom Theme Style -->
<link href="css/custom.min.css" rel="stylesheet">
</head>
<body class="nav-md">
<div class="container body">
<div class="main_container">
<div class="col-md-12 left_col">
<div class="left_col scroll-view">
<div class="col-md-12 col-sm-12 col-xs-12">
<div class="x_panel">
<div class="x_content">
<table id="datatable-buttons" class="table table-striped table-bordered">
<thead>
<tr>
<th>S/N</th>
<th>Date</th>
<th>IP Address</th>
<th>UID</th>
<th>Activation</th>
<th>Command</th>
</tr>
</thead>
<tbody>
<?php
$count_rows = 0;
include 'database_connection.php';
$sql = "SELECT `date`, `ip`, `id`, `activate` FROM `software`";
$result = $conn->query($sql);
while ($row = mysqli_fetch_array($result)):
$count_rows++;
?>
<tr>
<td><?php echo $count_rows ?></td>
<td><?php echo $row['date']; ?></td>
<td><?php echo $row['ip']; ?></td>
<td><?php echo $row['id']; ?></td>
<td><?php echo $row['activate']; ?> <td><button type="button" id="btn-uninstall" class="btn btn-danger btn-xs">Uninstall</button> <button type="button" id="btn-install" class="btn btn-success btn-xs">Install</button> <button type="button" id="btn-upgrade" class="btn btn-warning btn-xs">Upgrade</button></td>
</tr>
<?php endwhile; ?>
</tbody>
</table>
<!-- jQuery -->
<script src="js/jquery.min.js"></script>
<!-- Bootstrap -->
<script src="js/bootstrap.min.js"></script>
<!-- FastClick -->
<script src="js/fastclick.js"></script>
<!-- NProgress -->
<script src="js/nprogress.js"></script>
<!-- iCheck -->
<script src="js/icheck.min.js"></script>
<!-- Datatables -->
<script src="js/jquery.dataTables.min.js"></script>
<script src="js/dataTables.bootstrap.min.js"></script>
<script src="js/dataTables.buttons.min.js"></script>
<script src="js/buttons.bootstrap.min.js"></script>
<script src="js/buttons.flash.min.js"></script>
<script src="js/buttons.html5.min.js"></script>
<script src="js/buttons.print.min.js"></script>
<script src="js/dataTables.fixedHeader.min.js"></script>
<script src="js/dataTables.keyTable.min.js"></script>
<script src="js/dataTables.responsive.min.js"></script>
<script src="js/responsive.bootstrap.js"></script>
<script src="js/dataTables.scroller.min.js"></script>
<script src="js/jszip.min.js"></script>
<script src="js/pdfmake.min.js"></script>
<script src="js/vfs_fonts.js"></script>
<!-- Custom Theme Scripts -->
<script src="js/custom.min.js"></script>
</body>
</html>
Here's screenshot of the page: https://image.ibb.co/eToeaz/Capture.png
You can send request to server by this code.
$con = new mysqli_connect("servername", "username", "password", "name");
if(!$con)
{
die("DB CONNECTION ERROR");
}
$result=mysqli_query($con, "SELECT * FROM 'table' WHERE 'something'");
$row=$result->fetch_array();
$count = mysqli_num_rows($result);
mysqli_close($con);
if( $count == 1 )
If you want it to happen instantly then use AJAX to send request to the php server, see https://www.w3schools.com/php/php_ajax_database.asp for more info.
if you want it with redirecting then use
$conn = new mysqli("DBservername", "DBusername", "DBpassword", "DBname");
if ($conn->connect_errno) {
$errormsg = ("Database Connection failed: " . $conn->connect_error );
return $errormsg;
}
$res=mysqli_query($conn, "SELECT * FROM 'table' WHERE 'something'");
$row=$res->fetch_array();
$count = mysqli_num_rows($res); // if fetch correct it returns must be 1 row
mysqli_close($conn);
if( $count == 1 ) etc
send query, update, delete etc.
$sql = "DELETE FROM 'table' WHERE 'something';
mysqli_query($conn,$sql);
Rough and bad php code but should work.
Edit after i understand what you actually asked:
When rendering results from database, anchor each button to redirect to a page /update/{rowid} or /update.php?id={rowid}
and in that link execute the query with conditions and etc.
I have a table displaying a list of users from my database and I have added a delete button beside each row so that if I want to delete that row I click the delete button and the row should disappear from my database and the table displayed on the database.
When I click delete it redirects me to another page but doesn't delete anything in the database. Please find attached my PHP for deleting users and the HTML table it is displaying from.
Thanks in advance
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="">
<meta name="author" content="">
<link rel="icon" href="../../favicon.ico">
<title>Ballymena Sports</title>
<!-- Bootstrap core CSS -->
<link href="bootstrap.min.css" rel="stylesheet">
<!-- Custom styles for this template -->
<link href="home2.css" rel="stylesheet">
<!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script>
<script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
<![endif]-->
</head>
<body>
<nav class="navbar navbar-inverse navbar-fixed-top" role="navigation">
<div class="container">
<div class="navbar-header">
<a class="navbar-brand" href="home2_template.html">Ballymena Sports</a>
</div>
<ul class="nav navbar-nav navbar-right">
<li>Administrator</li>
<li>Log out</li>
</ul>
</div>
</nav>
<!-- Main part of homepage -->
<div class="jumbotron">
<div class="container">
<h2>Users</h2>
<p>This table shows all registered users of Ballymena Sports:</p>
<div class="table-responsive">
<tbody>
<?php
include "config.php";
$query = $db->prepare("SELECT * FROM user ORDER BY userID asc");
$query->execute();
echo "<table id='user' class='table table-bordered'>
<tr>
<th>User ID</th>
<th>Username</th>
<th>Forename</th>
<th>Surname</th>
<th>Email</th>
<th>Address</th>
<th>Town</th>
<th>Postcode</th>
<th>Edit User</th>
<th>Delete User</th>
</tr>";
while ($dbRow = $query->fetch(PDO::FETCH_ASSOC)) {
$userID = $dbRow['userID'];
$username = $dbRow['username'];
$forename = $dbRow['forename'];
$surname = $dbRow['surname'];
$email = $dbRow['email'];
$address1 = $dbRow['address1'];
$town = $dbRow['town'];
$postcode = $dbRow['postcode'];
// code to display information
{ echo "<tr>
<td>$userID</td>
<td>$username</td>
<td>$forename</td>
<td>$surname</td>
<td>$email</td>
<td>$address1</td>
<td>$town</td>
<td>$postcode</td>
<td><a href='edit_user.php'>Edit</a></td>
<td><a href='delete_user.php'>Delete</a></td>
</tr>";}
}
?>
</tbody>
</div>
</table>
</div>
</div>
<?php
if(!$_SESSION['admin_username']){
header('location:admin_login.php');
$name = $_SESSION['admin_username'];
}
?>
<hr>
<!-- Bootstrap core JavaScript
================================================== -->
<!-- Placed at the end of the document so the pages load faster -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="../../dist/js/bootstrap.min.js"></script>
<!-- IE10 viewport hack for Surface/desktop Windows 8 bug -->
<script src="../../assets/js/ie10-viewport-bug-workaround.js"></script>
<!-- Header and footer later to be used as include statements -->
</body>
</html>
DELETE.PHP
<?php
/*
DELETE.PHP
Deletes a specific entry from the 'players' table
*/
// connect to the database
include "config.php";
// check if the 'id' variable is set in URL, and check that it is valid
if (isset($_GET['userID']))
{
// get id value
$userID = $_GET['userID'];
// delete the entry
$query = $db->prepare("DELETE FROM user WHERE userID='$userID'");
$query->execute();
// redirect back to the view page
echo'deleted';
header("Location: view_user.php");
}
else
// if id isn't set, or isn't valid, redirect back to view page
{
echo'no id';
header("Location: admin_panel.php");
}
?>
You don't pass $userId to delete.php
<td><a href='delete_user.php?userId=".$userID."'>Delete</a></td>
What I would like to know is when I grab data from a Database how can I format it with PHP so it looks nice. All i seem to be getting is a Blank white page and when i inspect the page with google chromes inspect element it says that i've got a 500 internal error.
For example, I'm using PDO to connect to the database. Heres my code:
<?php
$hostname='localhost';
$username='root';
$password='root';
try {
$dbh = new PDO("mysql:host=$hostname;dbname=fitness", $username, $password);
$sql = "SELECT * FROM fitness";
$fitnessResult = $dbh->query($s ql);
$fitness = $dbh->fetchObject($fitnessResult);
foreach ($fitness AS $fit) {
$fitnessArray[] = ['name' => $fit->name, 'id' => $fit->description];
}
$dbh = null;
}
catch (PDOexception $e) {
echo "Error is: " . $e-> etmessage();
}
and here is my html im using the twitter bootstrap framework.
<?php
include'inc/connect.inc.php';
?>
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Fitness</title>
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css">
<!-- Optional theme -->
<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap- theme.min.css">
<link rel="stylesheet" href="css/style.css" />
<!-- Latest compiled and minified JavaScript -->
<script src="//netdna.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
<div class="row">
<div class="col-xs-4">
<?php foreach ($fitnessArray AS $fitness) { echo '<h2>'. $fitness['name'] .'</h2>'; echo '<p>' . $fitness['description'] . '</p>';} ?>
</div>
<div class="col-xs-8">
<p>Dummy Text</p>
</div>
</div>
</div>
</body>
</html>
So how would I put the name into a H1 tag and the description into P tag.
Thanks
You might want to try something like the following which keeps the objects and fetchs all in an arrary
$fitnessResult = $dbh->query($sql);
$fitnessArray = $fitnessResult->fetchAll(PDO::FETCH_OBJ);
then in your html
<?php foreach ($fitnessArray AS $fitness): ?>
<h2><?=$fitness->name ?></h2>
<p><?=$fitness->description ?></p>
<?php endforeach; ?>
see official docs for fetchAll()
I have my footer.php with admin button in it and when i include it at the end of my page the button doesn't appear.. But if i put it before this code:
<?php if ($row["rights"]=="2"):?>
<div id='cssmenu-admin'>
<ul>
<li name='admin' class='active'><a href='administration.php'><span>Admin</span></a></li>
</ul>
</div>
<?php endif; ?>
from footer.php before while cycle it works like it should.
This my footer.php file:
<div id="footer">
<hr>Copyrighted (C) 2014 by djdanas#gmail.com<br>
<?php if ($row["rights"]=="2"):?>
<div id='cssmenu-admin'>
<ul>
<li name='admin' class='active'><a href='administration.php'><span>Admin</span></a></li>
</ul>
</div>
<?php endif; ?>
</div>
<br><hr>
And this is my page file:
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>Pagrindinis</title>
<link href="CSS/stilius.css" rel="stylesheet" type="text/css"/>
<link href="CSS/menu.css" rel="stylesheet" type="text/css"/>
</head>
<body>
<?php require("includes/validate.php");?>
<?php require("includes/stilius.php");?>
<?php
require("includes/connection_to_db.php");
$sql = "SELECT prekės.* , CONCAT(vartotojai.name) as v_name
FROM prekės
LEFT JOIN vartotojai
ON vartotojai.V_ID=prekės.V_ID
ORDER BY prekės.date
DESC LIMIT 8";
$result = mysql_query("$sql");
?>
<?php mysql_close(); ?>
<?php while ($row = mysql_fetch_assoc($result)) : ?>
<?php $image = '<td><img src="data:image/jpeg;base64,'.base64_encode($row['image']).'" name="pix" width="270" height="200"/></td>' ?>
<table class="two">
<th><?php echo $row['name'] ?></th>
<th>Prekės savininkas: <?php echo $row['v_name']?></th>
<th><input type="button" value="Mainyti"></th>
<tr>
<?php echo $image?>
<td><textarea disabled style="resize:none; background-color:white" name="about" rows="12" cols="65"><?php echo $row['specs']?></textarea><td>
</table>
<?php endwhile; ?>
<?php require("includes/footer.php");?>
</body>
</html>
EDIT:
Ok, i solved my problem by adding new variable
$rights = $row['rights'];
right after
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>Pagrindinis</title>
<link href="CSS/stilius.css" rel="stylesheet" type="text/css"/>
<link href="CSS/menu.css" rel="stylesheet" type="text/css"/>
</head>
<body>
<?php require("includes/validate.php");?>
<?php require("includes/stilius.php");?>
in my page file and changed 1 line in my footer.php file from
<?php if ($row['rights']=="2"):?>
to
<?php if ($rights="2"):?>
now it's working like a charm :)
I'll take a stab in the dark here and say that your test
if ($row["rights"]=="2")
means you are checking to see if the user logged in has the "rights" of 2?
Then when you loop through your query...
while ($row = mysql_fetch_assoc($result))
You are overwriting your $row variable. So whatever you thought was in there to begin with, isn't anymore. You should use a different variable for either your user or looping through the query.
EDIT:
It's also possible that the variable isn't in scope once you get to where you are testing it. You could try using a print_r($row) in footer.php to see what is currently inside of $row -- that should help.