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PHP - Query Not Getting Info
For some odd reason, my MySQL array is not returning any data. I echo'd the query and it is correct, I looked at the database and that row is in there, but when I print_r the array, nothing. Here is the code.
$infoquery = "SELECT * FROM '$endotype' WHERE ID = '$typeid' ORDER BY ID DESC LIMIT 1"; $info = mysql_query($infoquery); echo $infoquery; $infoout = mysql_fetch_array($info); print_r($infoout); Its a very simple query and its driving me nuts. Similar TutorialsHow can i use single quote for values? $qry='insert into tablename values('a','b');'; I am ok with codeing but NOT half-as good as some of your GUYS here. I'm trying to write a simple sql query based on returning certain values from a table for that user. I would like to just beable to include this as a page user.info.php and render it on any page as include to return need values . See My CODE. PLESE HELP ME. Code: [Select] <?php @session_start(); $user = $_SESSION['username']; // Set cookie $userid = JRequest::getVar('userid'); $data = new stdClass(); $model =& $this->getModel('profile'); $my = CFactory::getUser(); // Test if userid is 0, check if the user is viewing its own profile. $db =& JFactory::getDBO(); $user =& JFactory::getUser(); $userId = $user->id; // Return with empty data if($userId == null || $userId == '') { //return false; } $user =& JFactory::getUser($userId); if($user->id == null){ //return false; } $id = & JFactory::getUser($userId); $query = 'SELECT user_id, id, format_id, year, name FROM #__muscol_albums WHERE user_id = ' . $id; //$query = 'SELECT user_id FROM #__muscol_albums WHERE id = ' . $album_id ; $result = mysql_query($query) or die('Error, No Album Search failed'); list($name, $user_id, $id, $year) = mysql_fetch_array($result); echo $id; echo $user_id; echo $year; // preform id return check and redirecto to correct url if ($user->get('id') == 0 || $userid == 0 || $userid <> $user->get('id')){ $url=JURI::root().'index.php?'.$component.'&id='.$id.'&tmpl=component&print=1'; } else { $url=JURI::root().'index.php?option=com_community&view=profile&id=1&tmpl=component&print=1'; //redirect is a function } ?> Heres what i got... function printLB1 (){ $result = mysql_query("SELECT * FROM leaderboards ORDER BY CollegeFootballPoints DESC"); while ($row = mysql_fetch_object($result)) { $leaderboard[] = $row->Username; $leaderboardPoints[] = $row->CollegeFootballPoints; } $num = mysql_num_rows($reault); //I know from here to ................... needs to be in a var or echo or something. <tr> <td>1.</td> //This will auto increment too like i++ but i cna do that myself! <td>echo $leaderboard;</td> <td>echo $leaderboardPoints;</td> </tr> //Here......................................................... } I need to pull a table row per user. But i want to somehow do it once in a function and then ill echo the function into a table after the php stuff is done. Like i want to pull every a table row per user in the function. then display the function below that way i don't have to write a whole extra query and table row per person. If you understand please help if not please let me know where i can explain more. Thanks Hello all,
Based on the suggestion of you wonderful folks here, I went away for a few days (to learn about PDO and Prepared Statements) in order to replace the MySQLi commands in my code. That's gone pretty well thus far...with me having learnt and successfully replaced most of my "bad" code with elegant, SQL-Injection-proof code (or so I hope).
The one-and-only problem I'm having (for now at least) is that I'm having trouble understanding how to execute an UPDATE query within the resultset of a SELECT query (using PDO and prepared statements, of course).
Let me explain (my scenario), and since a picture speaks a thousand words I've also inlcuded a screenshot to show you guys my setup:
In my table I have two columns (which are essentially flags i.e. Y/N), one for "items alreay purchased" and the other for "items to be purchased later". The first flag, if/when set ON (Y) will highlight row(s) in red...and the second flag will highlight row(s) in blue (when set ON).
I initially had four buttons, two each for setting the flags/columns to "Y", and another two to reverse the columns/flags to "N". That was when I had my delete functionality as a separate operation on a separate tab/list item, and that was fine.
Now that I've realized I can include both operations (update and delete) on just the one tab, I've also figured it would be better to pare down those four buttons (into just two), and set them up as a toggle feature i.e. if the value is currently "Y" then the button will set it to "N", and vice versa.
So, looking at my attached picture, if a person selects (using the checkboxes) the first four rows and clicks the first button (labeled "Toggle selected items as Purchased/Not Purchased") then the following must happen:
1. The purchased_flag for rows # 2 and 4 must be switched OFF (set to N)...so they will no longer be highlighted in red.
2. The purchased_flag for row # 3 must be switched ON (set to Y)...so that row will now be highlighted in red.
3. Nothing must be done to rows # 1 and 5 since: a) row 5 was not selected/checked to begin with, and b) row # 1 has its purchase_later_flag set ON (to Y), so it must be skipped over.
Looking at my code below, I'm guessing (and here's where I need the help) that there's something wrong in the code within the section that says "/*** loop through the results/collection of checked items ***/". I've probably made it more complex than it should be, and that's due to the fact that I have no idea what I'm doing (or rather, how I should be doing it), and this has driven me insane for the last 2 days...which prompted me to "throw in the towel" and seek the help of you very helpful and intellegent folks. BTW, I am a newbie at this, so if I could be provided the exact code, that would be most wonderful, and much highly appreciated.
Thanks to you folks, I'm feeling real good (with a great sense of achievement) after having come here and got the great advice to learn PDO and prepared statements.
Just this one nasty little hurdle is stopping me from getting to "end-of-job" on my very first WebApp. BTW, sorry about the long post...this is the best/only way I could clearly explaing my situation.
Cheers guys!
case "update-delete":
if(isset($_POST['highlight-purchased']))
{
// ****** Setup customized query to obtain only items that are checked ******
$sql = "SELECT * FROM shoplist WHERE";
for($i=0; $i < count($_POST['checkboxes']); $i++)
{
$sql=$sql . " idnumber=" . $_POST['checkboxes'][$i] . " or";
}
$sql= rtrim($sql, "or");
$statement = $conn->prepare($sql);
$statement->execute();
// *** fetch results for all checked items (1st query) *** //
$result = $statement->fetchAll();
$statement->closeCursor();
// Setup query that will change the purchased flag to "N", if it's currently set to "Y"
$sqlSetToN = "UPDATE shoplist SET purchased = 'N' WHERE purchased = 'Y'";
// Setup query that will change the purchased flag to "Y", if it's currently set to "N", "", or NULL
$sqlSetToY = "UPDATE shoplist SET purchased = 'Y' WHERE purchased = 'N' OR purchased = '' OR purchased IS NULL";
$statementSetToN = $conn->prepare($sqlSetToN);
$statementSetToY = $conn->prepare($sqlSetToY);
/*** loop through the results/collection of checked items ***/
foreach($result as $row)
{
if ($row["purchased"] != "Y")
{
// *** fetch one row at a time pertaining to the 2nd query *** //
$resultSetToY = $statementSetToY->fetch();
foreach($resultSetToY as $row)
{
$statementSetToY->execute();
}
}
else
{
// *** fetch one row at a time pertaining to the 2nd query *** //
$resultSetToN = $statementSetToN->fetch();
foreach($resultSetToN as $row)
{
$statementSetToN->execute();
}
}
}
break;
}
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Here is my code: // Start MySQL Query for Records $query = "SELECT codes_update_no_join_1b" . "SET orig_code_1 = new_code_1, orig_code_2 = new_code_2" . "WHERE concat(orig_code_1, orig_code_2) = concat(old_code_1, old_code_2)"; $results = mysql_query($query) or die(mysql_error()); // End MySQL Query for Records This query runs perfectly fine when run direct as SQL in phpMyAdmin, but throws this error when running in my script??? Why is this??? Code: [Select] You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '= new_code_1, orig_code_2 = new_code_2WHERE concat(orig_code_1, orig_c' at line 1 If you also have any feedback on my code, please do tell me. I wish to improve my coding base. Basically when you fill out the register form, it will check for data, then execute the insert query. But for some reason, the query will NOT insert into the database. In the following code below, I left out the field ID. Doesn't work with it anyways, and I'm not sure it makes a difference. Code: Code: [Select] mysql_query("INSERT INTO servers (username, password, name, type, description, ip, votes, beta) VALUES ($username, $password, $name, $server_type, $description, $ip, 0, 1)"); Full code: Code: [Select] <?php include_once("includes/config.php"); ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title><? $title; ?></title> <meta http-equiv="Content-Language" content="English" /> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <link rel="stylesheet" type="text/css" href="style.css" media="screen" /> </head> <body> <div id="wrap"> <div id="header"> <h1><? $title; ?></h1> <h2><? $description; ?></h2> </div> <? include_once("includes/navigation.php"); ?> <div id="content"> <div id="right"> <h2>Create</h2> <div id="artlicles"> <?php if(!$_SESSION['user']) { $username = mysql_real_escape_string($_POST['username']); $password = mysql_real_escape_string($_POST['password']); $name = mysql_real_escape_string($_POST['name']); $server_type = mysql_real_escape_string($_POST['type']); $description = mysql_real_escape_string($_POST['description']); if(!$username || !$password || !$server_type || !$description || !$name) { echo "Note: Descriptions allow HTML. Any abuse of this will result in an IP and account ban. No warnings!<br/>All forms are required to be filled out.<br><form action='create.php' method='POST'><table><tr><td>Username</td><td><input type='text' name='username'></td></tr><tr><td>Password</td><td><input type='password' name='password'></td></tr>"; echo "<tr><td>Sever Name</td><td><input type='text' name='name' maxlength='35'></td></tr><tr><td>Type of Server</td><td><select name='type'> <option value='Any'>Any</option> <option value='PvP'>PvP</option> <option value='Creative'>Creative</option> <option value='Survival'>Survival</option> <option value='Roleplay'>RolePlay</option> </select></td></tr> <tr><td>Description</td><td><textarea maxlength='1500' rows='18' cols='40' name='description'></textarea></td></tr>"; echo "<tr><td>Submit</td><td><input type='submit'></td></tr></table></form>"; } elseif(strlen($password) < 8) { echo "Password needs to be higher than 8 characters!"; } elseif(strlen($username) > 13) { echo "Username can't be greater than 13 characters!"; } else { $check1 = mysql_query("SELECT username,name FROM servers WHERE username = '$username' OR name = '$name' LIMIT 1"); if(mysql_num_rows($check1) < 0) { echo "Sorry, there is already an account with this username and/or server name!"; } else { $ip = $_SERVER['REMOTE_ADDR']; mysql_query("INSERT INTO servers (username, password, name, type, description, ip, votes, beta) VALUES ($username, $password, $name, $server_type, $description, $ip, 0, 1)"); echo "Server has been succesfully created!"; } } } else { echo "You are currently logged in!"; } ?> </div> </div> <div style="clear: both;"> </div> </div> <div id="footer"> <a href="http://www.templatesold.com/" target="_blank">Website Templates</a> by <a href="http://www.free-css-templates.com/" target="_blank">Free CSS Templates</a> - Site Copyright MCTop </div> </div> </body> </html> Say I have this query: site.com?var=1 ..I have a form with 'var2' field which submits via get. Is there a way to produce: site.com?var=1&var2=formdata I was hoping there would be a quick way to affix, but can't find any info. Also, the query could sometimes be: site.com?var2=formdata&var=1 I would have to produce: site.com?var2=updatedformdata&var=1 Is my only option to further parse the query? I'm trying to update every record where one field in a row is less than the other. The code gets each row i'm looking for and sets up the query right, I hope I combined the entire query into one string each query seperated by a ; so it's like UPDATE `table` SET field2= '1' WHERE field1= '1';UPDATE `table` SET field2= '1' WHERE field1= '2';UPDATE `table` SET field2= '1' WHERE field1= '3';UPDATE `table` SET field2= '1' WHERE field1= '4';UPDATE `table` SET field2= '1' WHERE field1= '5'; this executes properly if i run the query in phpMyAdmin, however when I run the query in PHP, it does nothing... Any advice? I was just wondering if it's possible to run a query on data that has been returned from a previous query? For example, if I do Code: [Select] $sql = 'My query'; $rs = mysql_query($sql, $mysql_conn); Is it then possible to run a second query on this data such as Code: [Select] $sql = 'My query'; $secondrs = mysql_query($sql, $rs, $mysql_conn); Thanks for any help Very simple question. I have a table with courses and a table with students registered for those courses. I have a page where I can change the course name. What I want to do is, when changing the course name in the course table, I want all students in the students table who are already registered for that course to have that course name updated as well in the student table. I'm currently using a field cid to update the courses in the course table however, the student table doesn't have a cid field rather a cname ( course name) which I want to use to update the fields in the student table. Is it possible to use Code: [Select] <a href=\"editcourse.php?cid=" for more than one field of info? i.e transfer the cid + cname and so you can use $_GET[cid]"; and $_GET[cname]"; ? Something like this maybe ( dont know how the code will go) "editcourse.php?cid=&cname=" ? Do I have the right idea for how to go about this? Hey guys, It's been awhile since I've coded in PHP and I can not for the life of me remember how to do this. Say I have http://www.example.com/search.php?name=joe&size=small What the PHP code to grab the ?name=joe&size=small part? thanks ok im back quicker than i thought.... i got my drop box sorted and i got it reloading the page. so it all works correctly. but how do i get the page to display information regarding the film i have selected in the drop box.? i have no code for this at the mo. also i would like the drop box to display the selected item at top of box when it refreshes code for drop box: Code: [Select] <FORM> <?php $result = mysql_query( "SELECT * FROM movie_info ORDER BY title ASC ") ; echo "<select name= Film onChange='submit()' >film name</option>"; while ($nt=mysql_fetch_array($result)){ ?> <?php echo "<option value='$nt[id]'>$nt[title] </option>"; } ?> </select> </FORM> any help would be great Hi guys I need some info Am doing an upload page for pictures, that crops images to two different sizes which works fine with small images. However some larger images it doesn't work (locally it works but not on the my server provider). I can upload the file (3481 * 2346 at 300 dpi) no problem but it actually never executes the imagecreatefromjpeg($myUploadedFile). Is there any issues with large file. I've been doing some recherches but can't seem to find any answer. The obvious idea is to have people upload photos without asking them to resize them. Thanks When I get a hit on my site I like to see where they came from and if they came from a search engine what keywords they used. So here is the refer info: http://www.google.com/search?q=dog+training&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a I guess I need to split everything into an array or something. Has anyone done this? Any Ideas? Thank you! In my script, users login with their Username & Password. However, I'd like to be able to echo the email address used on their account.
I've tried adding the email to the session I'm not having much luck... Here's a piece of the login code(untouched);
$username = $_POST['name'];
$passwd = $_POST['passwd'];
$query = "SELECT name,passwd FROM users WHERE CONCAT('0x', hex(passwd)) = '{$salt}'";
$result = mysql_query($query);
$login_ok = false;
if(mysql_num_rows($result) > 0) {
$login_ok = true;
}
if($login_ok)
{
$row = mysql_fetch_array($result, MYSQL_NUM);
$_SESSION['user'] = $row;
I've also tried messing around with this piece below in a few different ways but still nothing.
<?php echo htmlentities($_SESSION['user']['email'], ENT_QUOTES, 'UTF-8'); ?>Any help is greatly appreciated.. let's say I have 100,000 users on my forum i want to cache there PROFILE INFO (About me) in .php files which is easy/etc but would that be more space than 100k rows in a db table, or 100k .php files? just wondering, prob a stupid question but atm I cache some lottery info and some other stuff, but that's only 1 .php it would be dumb to cache info and have 100k .php's for each user ID right? or maybe story it all in 1 .php? would be a HUGE Filesize? rather just keep the data in MYSQL right? Hi Ive currently developed a script that connects via an API to send a message, and tested it with one user and it works perfectly. But now im bit stuck to send it to multiple users. All my visitors unique IDs are being stored into a file called unique.csv all in 1 column under each other. But what im currently trying to do is to recall the info from the csv and make a contact list to broadcast the message to.
The csv file looks like:
27823116700
m59317461002 I am parsing an rss feed from my flickr photostream using this:-
<?php
$url = "http://api.flickr.com/services/feeds/photos_public.gne?id=49466419@N05&lang=en-us&format=rss_200";
$rss = simplexml_load_file($url);
if($rss)
{
echo '<h1>'.$rss->channel->title.'</h1>';
echo '<li>'.$rss->channel->pubDate.'</li>';
$items = $rss->channel->item;
foreach($items as $item)
{
$title = $item->title;
$link = $item->link;
$published_on = $item->pubDate;
$description = $item->description;
echo '<h3><a href="'.$link.'">'.$title.'</a></h3>';
echo '<span>('.$published_on.')</span>';
echo '<p>'.$description.'</p>';
}
}
?>
which gives me this as the description for each image:-
public 'description' => string ' <p><a href="http://www.flickr.com/people/alfthomas/">Alf Thomas</a> posted a photo:</p> <p><a href="http://www.flickr.com/photos/alfthomas/14064465890/" title="harlaw_12"> <img src="http://farm6.staticflickr.com/5077/14064465890_83c02ecec6_m.jpg" width="240" height="110" alt="harlaw_12" /> </a> </p> <p>A view of Harlaw Reservoir.</p>' (length=338)What I actually want is the photo (linked back) without the "Alf Thomas posted a photo" bit, does anyone have any idea how I would go about cloning that bit out? Edited by foucquet, 31 May 2014 - 08:14 AM. hello, i am transferring the post number from a forum page, to a non-forum page via url variables.. how do i stop someone editing the url variable and viewing the posts concerned? i thought i could possibly use cookies/or a kind of auto-post form.. please help if you can.. just what to google would be appreciated |
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