I'm trying to develop a user profile system on my website, with the previous 3 posts made by the user. I can get it to select the previous 3 records, but it will only display one of them. Am I just being stupid because I'm trying to code at 2am?
<?php
$q = "SELECT * FROM blog_cmt WHERE uid=".$profile_uid." ORDER BY id DESC LIMIT 3";
$r = $db->query($q);
$c = $r->num_rows;
?>
<table class="table">
<?php
while($post = $r->fetch_assoc()) {
$pid = $post['pid'];
$q = "SELECT * FROM blog WHERE pid=".$pid;
$r = $db->query($q);
$blog = $r->fetch_assoc();
$title = $blog['title'];
$date = timeSince(strtotime($post['date']));
?>
<tr>
<td>
Commented on <?php echo $title; ?>
</td>
<td>
<?php echo $date; ?> ago
</td>
</tr>
<?php
}
?>
</table>
<?php
$profile_post_qry = "SELECT * FROM blog_cmt WHERE uid=".$profile_uid." ORDER BY id DESC LIMIT 3";
$profile_posts = $db->query($profile_post_qry);
$profile_post_count = $profile_posts->num_rows;
?>
<table class="table">
<?php
while($post = $profile_posts->fetch_assoc()) {
$pid = $post['pid'];
$blog_qry = "SELECT * FROM blog WHERE pid=".$pid;
$blog_info = $db->query($blog_qry);
$blog = $blog_info->fetch_assoc();
$title = $blog['title'];
$date = timeSince(strtotime($post['date']));
?>
<tr>
<td>
Commented on <?php echo $title; ?>
</td>
<td>
<?php echo $date; ?> ago
</td>
</tr>
<?php
Related
I have this report which filters data from 5 tables but it is very slow takes around 10 seconds. I tried using index on some columns but it did not help.
Basically the first query is the master and the others are for filtering it if the other queries condition met then it will skip it.
this is the script:
<div class="col-md-12">
<h3>List of Outstandings</h3>
<table class="table table-condensed table-bordered table-hover small">
<thead>
<tr>
<th >#</th>
<th>PR #</th>
<th>PR Type</th>
<th>Description</th>
<th>Dep.</th>
<th>Date</th>
<th>Requester</th>
<th>Assigned to</th>
</tr>
</thead>
<tbody>
<?php
$chkk = 0;
$sql = "SELECT * FROM msr WHERE Status ='Approved' ";
$result6 = $connn->query($sql);
if ($result6->num_rows > 0) {
$vo = 1;
while ($row0 = $result6->fetch_assoc()) {
$chkk = 0;
$MSRID = $row0["MSRID"];
$MSRType = $row0["MSRType"];
$result4 = "SELECT owner FROM tracking WHERE MSRID='$MSRID' ";
$MyRow4 = $connn->query($result4);
$row4 = $MyRow4->fetch_assoc();
$actionBy = $row4["owner"];
$resultusr = "SELECT RFQID FROM rfq WHERE MSRID='$MSRID' AND NOPO='No' ";
$MyRowusr = $connn->query($resultusr);
$rowusr = $MyRowusr->fetch_assoc();
$rfqcount = mysqli_num_rows($MyRowusr);
if ($rfqcount > 0) {
$chkk = 1;
}
$resultusr4 = "SELECT POID FROM po WHERE MSRID='$MSRID' ";
$MyRowusr4 = $connn->query($resultusr4);
$rowusr4 = $MyRowusr4->fetch_assoc();
$rfqcount4 = mysqli_num_rows($MyRowusr4);
if ($rfqcount4 > 0) {
$chkk = 1;
}
$resultusr1 = "SELECT MSRID FROM contract WHERE MSRID='$MSRID' ";
$MyRowusr1 = $connn->query($resultusr1);
$rowusr1 = $MyRowusr1->fetch_assoc();
$rfqcount1 = mysqli_num_rows($MyRowusr1);
if ($rfqcount1 > 0) {
$chkk = 1;
}
if ($chkk == 1) {
continue;
}
?>
<tr>
<td>
<?php echo $vo; ?>
</td>
<td>
<?php echo $row0["MSRID"]; ?>
</td>
<td>
<?php echo $row0["MSRType"]; ?>
</td>
<td>
<?php echo $row0["purposeofbuying"]; ?>
</td>
<td>
<?php echo depName($row0["DepRequester"]); ?>
</td>
<td>
<?php echo $row0["RequestDate"]; ?>
</td>
<td>
<?php echo reqName($row0["RequestPer"]); ?>
</td>
<td>
<?php echo reqName($actionBy); ?>
</td>
</tr>
<?php
$vo++;
}
}
?>
</tbody>
</table>
</div>
</div>
You can use subquery method instead of looping.
Example:
$sql = "SELECT *,
( SELECT owner
FROM tracking
WHERE tracking.MSRID= msr.MSRID
) AS _owner,
( SELECT RFQID
FROM rfq
WHERE rfq.MSRID= msr.MSRID
AND rfq.NOPO='No'
) AS _RFQID
FROM msr
WHERE rfq.Status ='Approved'";
Currently, When I type 'M' in the search engine I do not get any results inspite of having a 'Math' value in my database. (I am using Match Against function of mysql on my website). So I decided to make a code that first runs a Match Against function and if no output is obtained, it again runs the search but this time using 'LIKE' function of my sql and if still no result is obtained it shows alert 'no values found'.
the gist of code is somewhat like this..
mysql(Match against function)
If (mysqli_num_rows > 0)
{output}
elseif (mysqli_num_rows < 1)
{ mysqli (LIKE function)
then show output}
else {show alert'no results'}
Will this code give the result 'Math' when I enter 'M' in the search engine.
The actual code.
<?php
if (isset($_POST['go']))
{ $search = $_POST['search'];
$college = $_POST['colleges'];
if (!empty($search))
{
if(isset($_POST['colleges']) )
{
$query1 = "Select filename, description, groupid, emailid, college, upload_date FROM images WHERE MATCH(description) AGAINST('$search') AND college = '$college' group by groupid order by MATCH(description) AGAINST('$search') DESC";
$query_run1 = mysqli_query($con, $query1) ;
}
else
{
$query1 = "Select filename, description, groupid, emailid, college,upload_date FROM images WHERE MATCH(description) AGAINST('$search') group by groupid order by MATCH(description) AGAINST('$search') DESC";
$query_run1 = mysqli_query($con, $query1) ;
$searchresults = mysqli_num_rows($query_run1);
?><p class = "totalresults"> <br />
<br />     <font size= "4" >Total Results :
<?php
echo $searchresults ;
?>
</font> </p>
<?php
if(mysqli_num_rows($query_run1)>0)
{
?>
<table class="searchenginelist" style="color: black;">
<tr>
<th> Uploader </th>
<th> Title </th>
<th> Date </th>
<th> Upvotes </th>
<th> Downvotes </th>
<th> College </th>
</tr>
<?php
while( $rows = mysqli_fetch_assoc($query_run1))
{
//$imagedisplay = $rows['file'];
$imagename = $rows['filename'];
// mysqli_real_escape_string($con,$imagedisplay);
$descrip = $rows['description'];
$groupid = $rows['groupid'];
//$groupid = $_SESSION['groupid'] ;
$uploader_emailid = $rows['emailid'];
$college = $rows['college'];
?>
<tr>
<td width="70px"> <?php
$query = " SELECT username from userinfo WHERE emailid = '$uploader_emailid' " ;
$query_run = mysqli_query($con,$query );
$raw = mysqli_fetch_assoc($query_run);
echo $raw['username']; ?>
</td>
<td width="450px"> <a href="imagespace.php?groupid=<?php echo $groupid ;?>">
<?php echo $descrip ; ?>
</a>
</td>
<td style="font-size:15px;" width="85px">
<?php echo $rows['upload_date'] ; ?>
</td>
<td align="center" style="color:green;" width="50px">
<?php
$query = "SELECT vote from votes where groupid = '$groupid' and vote = '1' ";
$query_run= mysqli_query($con, $query);
$upvote=mysqli_num_rows($query_run) ;
echo $upvote;
?>
</td>
<td align="center" style="color:red;" width="50px">
<?php
$query = "SELECT vote from votes where groupid = '$groupid' and vote = '0' ";
$query_run= mysqli_query($con, $query);
$downvote=mysqli_num_rows($query_run) ;
echo $downvote;
?>
</td>
<td style="font-size:13px;" width="130px">
<?php echo $college; ?>
</td>
</tr>
<?php
}
?>
</table>
<?php
}
elseif(mysqli_num_rows($query_run1) < 1)
{
$query12 = "Select * FROM images WHERE description LIKE '%".mysqli_real_escape_string($con,$search)."%' group by groupid order by groupid DESC";
$query_run12 = mysqli_query($con, $query12) ;
?> <table class="searchenginelist" style="color: black;">
<tr>
<th> Uploader </th>
<th> Title </th>
<th> Date </th>
<th> Upvotes </th>
<th> Downvotes </th>
<th> College </th>
</tr>
<?php
while( $rows = mysqli_fetch_assoc($query_run12))
{
//$imagedisplay = $rows['file'];
$imagename = $rows['filename'];
// mysqli_real_escape_string($con,$imagedisplay);
$descrip = $rows['description'];
$groupid = $rows['groupid'];
//$groupid = $_SESSION['groupid'] ;
$uploader_emailid = $rows['emailid'];
$college = $rows['college'];
?>
<tr>
<td width="70px"> <?php
$query = " SELECT username from userinfo WHERE emailid = '$uploader_emailid' " ;
$query_run = mysqli_query($con,$query );
$raw = mysqli_fetch_assoc($query_run);
echo $raw['username']; ?>
</td>
<td width="450px"> <a href="imagespace.php?groupid=<?php echo $groupid ;?>">
<?php echo $descrip ; ?>
</a>
</td>
<td style="font-size:15px;" width="85px">
<?php echo $rows['upload_date'] ; ?>
</td>
<td align="center" style="color:green;" width="50px">
<?php
$query = "SELECT vote from votes where groupid = '$groupid' and vote = '1' ";
$query_run= mysqli_query($con, $query);
$upvote=mysqli_num_rows($query_run) ;
echo $upvote;
?>
</td>
<td align="center" style="color:red;" width="50px">
<?php
$query = "SELECT vote from votes where groupid = '$groupid' and vote = '0' ";
$query_run= mysqli_query($con, $query);
$downvote=mysqli_num_rows($query_run) ;
echo $downvote;
?>
</td>
<td style="font-size:13px;" width="130px">
<?php echo $college; ?>
</td>
</tr>
}
?>
</table>
<?php
}
else
{
echo '<script type="text/javascript"> alert ("No results found") </script>' ;
}
}
else
{ echo '<script type="text/javascript"> alert ("No data entered") </script>';
}
}
}
You have some syntax issues in your code, your else statements were not lined up properly, so your page was not working. (For example, you had an } else { lined up with another } else {).
I went through all of the code and formatted it so I could see what the issue was, remember, Some sensible code indentation would be a good idea.
It helps us read the code and more importantly it will help you debug your code.
Take a quick look at a coding standard for your own benefit.
You may be asked to amend this code in a few weeks/months and you will thank me in the end.
<?php
if (isset($_POST['go'])) {
$search = $_POST['search'];
$college = $_POST['colleges'];
if (!empty($search)) {
if(isset($_POST['colleges']) ) {
$query1 = "Select filename, description, groupid, emailid, college, upload_date FROM images WHERE MATCH(description) AGAINST('$search') AND college = '$college' group by groupid order by MATCH(description) AGAINST('$search') DESC";
$query_run1 = mysqli_query($con, $query1);
} else {
$query1 = "Select filename, description, groupid, emailid, college,upload_date FROM images WHERE MATCH(description) AGAINST('$search') group by groupid order by MATCH(description) AGAINST('$search') DESC";
$query_run1 = mysqli_query($con, $query1);
$searchresults = mysqli_num_rows($query_run1);
?>
<p class = "totalresults">
<br />
<br />
    <font size= "4" >Total Results: <?php echo $searchresults; ?></font>
</p>
<?php
if(mysqli_num_rows($query_run1)>0) {
?>
<table class="searchenginelist" style="color: black;">
<tr>
<th> Uploader </th>
<th> Title </th>
<th> Date </th>
<th> Upvotes </th>
<th> Downvotes </th>
<th> College </th>
</tr>
<?php
while( $rows = mysqli_fetch_assoc($query_run1)) {
//$imagedisplay = $rows['file'];
$imagename = $rows['filename'];
// mysqli_real_escape_string($con,$imagedisplay);
$descrip = $rows['description'];
$groupid = $rows['groupid'];
//$groupid = $_SESSION['groupid'] ;
$uploader_emailid = $rows['emailid'];
$college = $rows['college'];
?>
<tr>
<td width="70px">
<?php
$query = " SELECT username from userinfo WHERE emailid = '$uploader_emailid' " ;
$query_run = mysqli_query($con,$query );
$raw = mysqli_fetch_assoc($query_run);
echo $raw['username'];
?>
</td>
<td width="450px">
<a href="imagespace.php?groupid=<?php echo $groupid ;?>">
<?php
echo $descrip;
?>
</a>
</td>
<td style="font-size:15px;" width="85px">
<?php
echo $rows['upload_date'] ;
?>
</td>
<td align="center" style="color:green;" width="50px">
<?php
$query = "SELECT vote from votes where groupid = '$groupid' and vote = '1' ";
$query_run= mysqli_query($con, $query);
$upvote=mysqli_num_rows($query_run) ;
echo $upvote;
?>
</td>
<td align="center" style="color:red;" width="50px">
<?php
$query = "SELECT vote from votes where groupid = '$groupid' and vote = '0' ";
$query_run= mysqli_query($con, $query);
$downvote=mysqli_num_rows($query_run) ;
echo $downvote;
?>
</td>
<td style="font-size:13px;" width="130px">
<?php
echo $college;
?>
</td>
</tr>
<?php
} //end while loop
?>
</table>
<?php
} else if(mysqli_num_rows($query_run1) < 1) {
$query12 = "Select * FROM images WHERE description LIKE '%".mysqli_real_escape_string($con,$search)."%' group by groupid order by groupid DESC";
$query_run12 = mysqli_query($con, $query12) ;
?>
<table class="searchenginelist" style="color: black;">
<tr>
<th> Uploader </th>
<th> Title </th>
<th> Date </th>
<th> Upvotes </th>
<th> Downvotes </th>
<th> College </th>
</tr>
<?php
while( $rows = mysqli_fetch_assoc($query_run12)) {
//$imagedisplay = $rows['file'];
$imagename = $rows['filename'];
// mysqli_real_escape_string($con,$imagedisplay);
$descrip = $rows['description'];
$groupid = $rows['groupid'];
//$groupid = $_SESSION['groupid'] ;
$uploader_emailid = $rows['emailid'];
$college = $rows['college'];
?>
<tr>
<td width="70px">
<?php
$query = " SELECT username from userinfo WHERE emailid = '$uploader_emailid' " ;
$query_run = mysqli_query($con,$query );
$raw = mysqli_fetch_assoc($query_run);
echo $raw['username'];
?>
</td>
<td width="450px">
<a href="imagespace.php?groupid=<?php echo $groupid ;?>">
<?php
echo $descrip ;
?>
</a>
</td>
<td style="font-size:15px;" width="85px">
<?php
echo $rows['upload_date'] ;
?>
</td>
<td align="center" style="color:green;" width="50px">
<?php
$query = "SELECT vote from votes where groupid = '$groupid' and vote = '1' ";
$query_run= mysqli_query($con, $query);
$upvote=mysqli_num_rows($query_run) ;
echo $upvote;
?>
</td>
<td align="center" style="color:red;" width="50px">
<?php
$query = "SELECT vote from votes where groupid = '$groupid' and vote = '0' ";
$query_run= mysqli_query($con, $query);
$downvote=mysqli_num_rows($query_run) ;
echo $downvote;
?>
</td>
<td style="font-size:13px;" width="130px">
<?php
echo $college;
?>
</td>
</tr>
</table>
<?php
} //end while loop
} else { //num rows < 1
echo '<script type="text/javascript"> alert ("No results found") </script>' ;
}
}
} else { //no searches returned
echo '<script type="text/javascript"> alert ("No data entered") </script>';
}
}
I also suggest, for really complex, nested structures, to comment what each ending bracket goes to like I did in your code. I put comments so that I could see exactly what the } was ending.
WARNING: This code may be vulnerable to SQL Injection Attacks. You should Learn about Prepared Statements for MySQLi or PDO. I recommend PDO, which I wrote a function for to make it extremely easy, very clean, and way more secure than using non-parameterized queries.
If you could access the mysql.ini of your host, you could simply change the min word length for full text search.
[mysqld]
ft_min_word_len=N
Otherwise you should decide which search function you want to use. It's not very intuitive for users if one search is a full text search and the other is a simple LIKE.
One way around could also be to only use full text, if the user types more than 2 chars.
// ...
if (strlen($query) < 4) {
$where = "MATCH (...) AGAINST ...";
} else {
$where = "...LIKE ... ";
}
$sql .= $where;
Btw. MATCH AGAINST should normaly return way more results than like, so doing a LIKE search after MATCH AGAINST returns 0 rows, is kinda useless.
Here's a screenshot of the page that I want to put a pagination Below is my code and I want to create a simple pagination. I tried some examples available in this site but unfortunately it doesn't work for me or I might have missed something in the code.
<?php
session_start();
$server = 'localhost';
$user = 'root';
$pass = 'root';
$connect = mysql_connect($server,$user,$pass)
or die(mysql_error());
$selectdb = mysql_select_db('des')
or die(mysql_error());
?>
<form method="post" name="action_form" action="admin2.php">
<div id="gallery1" class="lbGallery">
<table class="table" width="100%" cellpadding="10">
<tbody>
<?php
$allRecords = mysql_query('select * from cms ORDER BY id DESC limit 4');
if(is_resource($allRecords))
{
while($row = mysql_fetch_assoc($allRecords))
{
?>
<tr><ul>
<td width="30%"><li style="list-style:none"><a href="uploads/<?php echo $row['image'];?>"/><img src="uploads/<?php echo $row['image'];?>"/></li></td>
<td style="float:left; font-size:16px"><?php echo $row['name']; ?></td>
</ul>
</tr>
<?php
}
}
?>
</tbody>
</table>
</div>
</form>
Try this. What is does is:
create a contant $amount en a variable $offset
Create a link (next) with which sends the value of $offset back to the script
Catch the value in $_GET['offset'];
Add the value of $amount to $offset to create a new offset.
Run MySQL statement again with the new values for LIMIT
I didn't actualy test this code for typo's, but you'll get the general idea. Hope this is of any help.
(Best to use the new mysqli statement by te way).
<?php
$amount = 4;
if (!empty($_GET['offset']))
{
$offset = $_GET['offset'] + $amount;
}
else
{
$offset = 1;
}
$allRecords = mysql_query('select * from cms ORDER BY id DESC limit $amount,$offset');
if(is_resource($allRecords))
{
while($row = mysql_fetch_assoc($allRecords))
{
?>
<tr><ul>
<td width="30%"><li style="list-style:none"><a href="uploads/<?php echo $row['image'];?>"/><img src="uploads/<?php echo $row['image'];?>"/></li></td>
<td style="float:left; font-size:16px"><?php echo $row['name']; ?></td>
</ul>
</tr>
<tr>
<td colspan="2">
Next
</td>
</tr>
<?php
}
}
?>
I have searched and stumbled upon many question like this. But that did not answer my question. Therefore, I am asking it again here. Here is my php code:
<?php
include("connect.php");
if(isset($_GET['view'])) {
$query = "SELECT * FROM posts order by 1 DESC";
$run = mysqli_query($con, $query);
while(mysqli_fetch_array($run)) {
$id = $row['Post_id'];
$title = $row['Post_title'];
$date = $row['Post_date'];
$author = $row['Post_author'];
$content = $row['Post_content'];
?>
<table width="800" align="center" border="5">
<tr>
<td align="center" colspan="9"><h1>View all Posts</h1></td>
</tr>
</table>
<?php
}
}
?>
Problem is with last line <?php } } ?> The instructor whom I am following is doing exactly like this. His code is working perfectly fine. But mine gives error,"Undefined variable row at line 27, 28, 29, 30". Any help would be appreciated.
You need to define $row in your while loop to iterate in each record from your query:
while($row = mysqli_fetch_array($run)) {
// Do something
}
You should define $row variable.
<?php
include("connect.php");
if(isset($_GET['view'])) {
$query = "SELECT * FROM posts order by 1 DESC";
$run = mysqli_query($con, $query);
while($row = mysqli_fetch_array($run)) {
$id = $row['Post_id'];
$title = $row['Post_title'];
$date = $row['Post_date'];
$author = $row['Post_author'];
$content = $row['Post_content'];
?>
<table width="800" align="center" border="5">
<tr>
<td align="center" colspan="9"><h1>View all Posts</h1></td>
</tr>
</table>
<?php } } ?>
Just Change
while($row = mysqli_fetch_array($run)) {
//Code
}
try this
<?php
include("connect.php");
if(isset($_GET['view'])) {
$query = "SELECT * FROM posts order by 1 DESC";
$run = mysqli_query($con, $query);
while($row =mysqli_fetch_array($run)) {
$id = $row['Post_id'];
$title = $row['Post_title'];
$date = $row['Post_date'];
$author = $row['Post_author'];
$content = $row['Post_content'];
?>
<table width="800" align="center" border="5">
<tr>
<td align="center" colspan="9"><h1>View all Posts</h1></td>
</tr>
</table>
<?php
}
}
?>
Yes. Because you did not defined the array $row. You have to define
$row= array(); before using it. like below
<?php
include("connect.php");
if(isset($_GET['view'])) {
$query = "SELECT * FROM posts order by 1 DESC";
$run = mysqli_query($con, $query);
$row= array();
while($row = mysqli_fetch_array($run)) {
$id = $row['Post_id'];
$title = $row['Post_title'];
$date = $row['Post_date'];
$author = $row['Post_author'];
$content = $row['Post_content'];
?>
<table width="800" align="center" border="5">
<tr>
<td align="center" colspan="9"><h1>View all Posts</h1></td>
</tr>
</table>
<?php } } ?>
This should work for you.
Define $row variable.
while($row=mysqli_fetch_array($run))
I want to use the script i placed underneath, but it should show me who's having birthday today. i have added a birthday in my sql table ion this format: 1985-06-03
<html>
<head>
<title>Last 10 Results</title>
</head>
<body>
<table>
<thead>
<tr>
<td>Id</td>
<td>Name</td>
</tr>
</thead>
<tbody>
<?php
$connect = mysql_connect("localhost","root", "root");
if (!$connect) {
die(mysql_error());
}
mysql_select_db("apploymentdevs");
$results = mysql_query("SELECT * FROM demo LIMIT 10");
while($row = mysql_fetch_array($results)) {
?>
<tr>
<td><?php echo $row['Id']?></td>
<td><?php echo $row['Name']?></td>
</tr>
<?php
}
?>
</tbody>
</table>
</body>
DB Table structure:
ID INT11
FirstName Varchar
LastName Varchar
Department Varchar
Birthday Date (yyyy-mm-dd)
Since, you will need to exclude the year, you can use the MONTH and DAY SQL functions like so:
SELECT * FROM table WHERE DAY(birthday) = DAY(CURDATE()) AND MONTH(birthday) = MONTH(CURDATE());
In your query, format each date to be MM-DD.
SELECT *
FROM demo
WHERE DATE_FORMAT(birthday, "%c-%d") = DATE_FORMAT(NOW(), "%c-%d")
LIMIT 10
This will bring back results where the MM-DD of both NOW() and the birthday value are equal.
http://dev.mysql.com/doc/refman/5.5/en/date-and-time-functions.html#function_date-format
<?php
$connect = mysql_connect("localhost","root", "root");
if (!$connect) {
die(mysql_error());
}
mysql_select_db("apploymentdevs");
$today_date = date('d');
$today_month = date('m');
$results = mysql_query("SELECT * FROM `table_name` where DATE('dob_column') = $today_date && MONTH(`dob_column`) = $today_month");
if(mysql_num_rows($results) > 0){
while($row = mysql_fetch_array($results)) {
?>
<tr>
<td><?php echo $row['Id']?></td>
<td><?php echo $row['Name']?></td>
</tr>
<?php
}
}else{
echo "No one birthday on today enter code here";
}
?>
Can you try something like this:
$results = mysql_query("SELECT * FROM demo WHERE MONTH(`table_column`) = '".date('m')."' AND YEAR(`table_column`) = '".date('Y')."'");