I'm trying to throw together a simple inventory database for a small customer of mine (I normally don't do WebDev stuff) but I'm a little stumped. I have what I think should work, but I get no results in my table. I know the query is good since I get the expected results when querying directly to the database, unless PHP expects different formatting of my SQL statement. here is my page:
<html>
<head>
<title>Inventory</title>
</head>
<body>
<?php
$con=mysqli_connect("localhost","user","pass","db_name");
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$query = "SELECT
products.name,
products.sku,
inventory.quantityfry,
inventory.quantityjuv,
inventory.quantityadult,
inventory.notes,
inventory.location,
inventory.owner
FROM
products
INNER JOIN
inventory
ON
products.sku=inventory.sku";
$result = mysqli_query($query);
echo "<table border='1'>
<tr>
<th>Species</th>
<th>SKU</th>
<th>Fry Count</th>
<th>Juvie Count</th>
<th>Adult Count</th>
<th>Notes</th>
<th>Location</th>
<th>Owner</th>
</tr>";
while ($row = mysqli_fetch_assoc($result)) {
echo "<tr>";
echo "<td>" . $row['name'] . "</td>";
echo "<td>" . $row['sku'] . "</td>";
echo "<td>" . $row['quantityfry'] . "</td>";
echo "<td>" . $row['quantityjuv'] . "</td>";
echo "<td>" . $row['quantityadult'] . "</td>";
echo "<td>" . $row['notes'] . "</td>";
echo "<td>" . $row['location'] . "</td>";
echo "<td>" . $row['owner'] . "</td>";
echo "</tr>";
}
mysqli_free_result($result);
echo "</table>";
mysqli_close($con);
?>
</body>
</html>
When I load the page, all I see is my HTML table headers, but no data. No error messages, either. What am I missing?
you don't see error messages because you don't bother checking for them. You're calling mysqli_query incorrectly, and since you don't check for errors, never see them:
$result = mysqli_query($con, $query) or die(mysqli_error($con));
^^^^---required
Since you used it incorrectly, the query call returns false. You then blindly try to fetch result rows from that boolean FALSE, which would lead to further errors and your while() loop never executing at all.
Related
Im trying to migrate my website from my local wamp project to my live server for testing, everything is working fine on my local site but on my live site the following code only returns one result. There are definitely multiple SQL entries that meet the sql query criteria. Any suggestions?
$opentickets = $db->query("SELECT tID, id, date, userid, category, department FROM ticket WHERE userid = '$_SESSION[id]' AND status='Open'");
if(count($opentickets) > 0) {
echo "<h2>Your open tickets:</h2>";
echo "<table class='table table-striped'>
<tr>
<th>Ticket</th>
<th>Date Submitted</th>
<th>Category</th>
<th>Department</th></tr>";
$o = $opentickets->fetch(PDO::FETCH_ASSOC);
echo "<tr><td><a href='ticket.php?id=" . $o['tID'] . "'>" . $o['tID'] . </td>";
echo "<td>" . $o['date'] . "</td>";
echo "<td>" . $o['category'] . "</td>";
echo "<td>" . $o['department'] . "</td></tr>";
echo "</table>";
}
else
{
echo "<h2>You have no open tickets</h2>";
}
You are not itterating over the results of your query, you are just fetching the first row...
Please reference to the examples on the PHP Website on how to do this.
I have just changed your code below, please check for the manuals for more information
while($o = $opentickets->fetch(PDO::FETCH_ASSOC)){
echo "<tr><td><a href='ticket.php?id=" . $o['tID'] . "'>" .$o['tID'] . </td>";
echo "<td>" . $o['date'] . "</td>";
echo "<td>" . $o['category'] . "</td>";
echo "<td>" . $o['department'] . "</td></tr>";
}
I'm actually a little bit confused with all these AJAX techniques. The aim is to display the new rows on my site when new rows are inserted into my database, but i dont know how. The following code has been inserted into my Joomla site threw an extension:
<!-- You can place html anywhere within the source tags -->
<script language="javascript" type="text/javascript">
// You can place JavaScript like this
</script>
<?php
$today = date("d/m/Y");
$sql = "SELECT * FROM queue WHERE";
$sql =$sql . " Date>='$today' ORDER BY Qnumber Desc LIMIT 3";
// echo $sql;
$con=mysqli_connect("localhost","root","db","pass");
// Check connection
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$result = mysqli_query($con,$sql);
echo "<table border='1'>
<tr>
<th>Αριθμός Εξυπηρέτησης</th>
<th>Πελάτες σε Αναμονή</th>
<th>Ώρα</th>
<th>Ημερομηνία</th>
</tr>";
while($row = mysqli_fetch_array($result))
{
echo "<tr>";
echo "<td>" . $row['Qnumber'] . "</td>";
echo "<td>" . $row['WaitingCustomers'] . "</td>";
echo "<td>" . $row['Time'] . "</td>";
echo "<td>" . $row['Date'] . "</td>";
echo "</tr>";
}
echo "</table>";
mysqli_close($con);
?>
Here is a little demonstration of what I want achieved.
What I want, is a clickable row with additional information fetched from the database.
I've seen some examples with Jquery, but those have some kind of static information in the expanded area. I want to load in this additional information, only after the row is clicked - so I wont have to load in too much information that might not be used.
Now, inside the expanded area, I need the additional information to be fetched like:
while($row = mysql_fetch_array($result))
{
echo "<tr>";
echo "<td>" . $row['manufacturer'] . "</td>";
echo "<td>" . $row['describtion'] . "</td>";
echo "<td>" . $row['rdate'] . "</td>";
echo "<td>" . $row['locked'] . "</td>";
echo "</tr>";
}
But only if a specific row is clicked.
<?php
$con = mysql_connect("localhost","root","");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
mysql_select_db("phone", $con);
$result = mysql_query("SELECT * FROM info");
echo "<table border='1'>
<tr>
<th>Model</th>
<th>Software</th>
<th>Carrier</th>
<th>Price</th>
</tr>";
while($row = mysql_fetch_array($result))
{
echo "<tr>";
echo "<td>" . $row['model'] . "</td>";
echo "<td>" . $row['os'] . "</td>";
echo "<td>" . $row['carrier'] . "</td>";
echo "<td>" . $row['price'] . "</td>";
echo "</tr>";
}
echo "</table>";
mysql_close($con);
?>
I have really done extensive searching, but that didn't get me closer to a solution.
Would it be better if I added HTML to the code, and somehow fetched the data inside the td tags?
I ended up using Datagrid.
It has the exact functionality I was looking for, and alot of tutorials to get you started.
http://www.jeasyui.com/tutorial/datagrid/datagrid21.php
I'm still quite new to this and have come across a problem I have been looking through a lot of tutorials and cannot figure a way to get over the problem.
I have a select query getting data out of my sql database however I need the data to be custom for each user who accesses it, so need to add a further query, I have a cookie read in with the user value '$user' and there is a collumn in the database that isnt put into the table however need to check that if the collumn 'privacy' has a value set as '1' and the $user is not the investigator of that row discard and do not put into the table. however populate with all data that isn't set to privacy='1' or is set to privacy=1 and the investigator='$user'
$sql="SELECT * FROM evidence WHERE $evidencevariable = '".$evidencespecify."'";
$result = mysql_query($sql);
if($result === FALSE) {
die(mysql_error());}
echo "<table class='sortable' border='1' id='table'>
<thead><tr>
<th>Id</th>
<th>Case Id</th>
<th>Investigator</th>
<th>Evidence Type</th>
<th>Created</th>
<th>Modified</th>
<th>LS</th>
<th>PS</th>
<th>Length</th>
<th>Importance</th>
<th>Information</th>
</tr></thead><tbody>";
while($row = mysql_fetch_array($result))
{
echo "<tr>";
echo "<td>" . $row['Id'] . "</td>";
echo "<td>" . $row['Case_ID'] . "</td>";
echo "<td>" . $row['Investigator'] . "</td>";
echo "<td>" . $row['Evidence_Type'] . "</td>";
echo "<td>" . $row['Created'] . "</td>";
echo "<td>" . $row['Modified'] . "</td>";
echo "<td>" . $row['LS'] . "</td>";
echo "<td>" . $row['PS'] . "</td>";
echo "<td>" . $row['Length'] . "</td>";
echo "<td>" . $row['Importance'] . "</td>";
echo "<td>" . $row['Information'] . "</td>";
echo "</tr>";
}
echo "</tbody></table>";
How can I get around this problem do I need to add more to the select statement at the beginning or is there a way of querying the array to remove the data before its put into the table?
Any help would be appreciated!
It seems you can easily modify the sql to something like:
$sql="SELECT * FROM user WHERE $evidencevariable='$evidencespecifiy' AND (Privacy=0 or (Privacy=1 AND investigator='$user'))";
I'm having a hard time figuring out how to get my table to display as a web page.
Everything else is working fine. I've been able to use a form to write records TO the table, but I'm simply unable to display the table.
Here's my code:
$host = "***";
$userName = "***";
$passWord = "***";
$db = "doctorWho";
mysql_connect($host,$userName,$passWord);
mysql_select_db($db) or die( "Unable to access database");
$query = "SELECT * FROM patients";
$result = mysql_query($query);
echo "<table border='1'>
<tr>
<th>Last Name</th>
<th>First Name</th>
<th>Address</th>
<th>Age</th>
<th>Sex</th>
<th>Marital Status</th>
<th>Medication</th>
<th>Date Rx'd</th>
<th>Quantity</th>
</tr>";
while($row = mysqli_fetch_array($result))
{
echo "<tr>";
echo "<td>" . $row['lastName'] . "</td>";
echo "<td>" . $row['firstName'] . "</td>";
echo "<td>" . $row['address'] . "</td>";
echo "<td>" . $row['age'] . "</td>";
echo "<td>" . $row['sex'] . "</td>";
echo "<td>" . $row['maritalStatus'] . "</td>";
echo "<td>" . $row['medication'] . "</td>";
echo "<td>" . $row['medsWhen'] . "</td>";
echo "<td>" . $row['medsQuant'] . "</td>";
echo "</tr>";
}
echo "</table>";
You want mysql_fetch_array(). Currently, you are mixing two different extensions. Each takes something different, relevant to the extension.
That aside, you should consider either PDO or MySQLi, which is where the wrong function you attempted to use is from. This article should help you decide which you could possibly use.
From php ref.
mixed mysqli_fetch_array ( mysqli_result $result [, int $resulttype = MYSQLI_BOTH ] )
mysqli_fetch_array need to mysqli_result, but you are using mysql_query, you should try mysql_fetch_array
// I think your connection should look like this
$conn = mysql_connect($host,$userName,$passWord);
mysql_select_db($conn,$db) or die( "Unable to access database");
// another is your using mysql as connection so you can use mysqli functions on that rofl.
//Instead use mysql functions
mysql_fetch_array();
note: Another one is instead of using # sign to handle error. Its much more best practice to use.. ini_set() or configuring php.ini in handling displaying of errors.
Just change:-
while($row = mysqli_fetch_array($result))
to
while($row = mysql_fetch_array($result))