PHP - [help] In My Web Based Examination System Written In Php

I'm trying to figure out how to create a temporary table of a query join, so I can paginate the results. I kind of made half of this up as i was going along - which is dangerous for a beginner like me.
I'm getting this error, and no results on the page:
Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource on line 179

also, is there a way to combine the two queries (create temp and insert from/into)


Code: [Select]
$sql2 = "CREATE TEMPORARY TABLE temp_search
    (plant_id INT PRIMARY KEY AUTO_INCREMENT,
     scientific_name VARCHAR(75),
     common_name VARCHAR(75),
     leaf_shape VARCHAR(75))";

$sqlx = "SELECT
                        descriptors.leaf_shape
                        ,plantae.scientific_name, plantae.common_name
                    FROM
                        descriptors
                    INNER JOIN
                        plantae ON (descriptors.plant_id = plantae.plant_name)
                    WHERE
                        descriptors.leaf_shape LIKE 'auriculate'
                        AND descriptors.leaf_venation LIKE '%$select3%'
                        AND descriptors.leaf_margin LIKE '%$select4%'

                    INTO temp_search (leaf_shape, scientific_name, common_name)";

$sql = "SELECT * FROM temp_search ORDER BY scientific_name ASC LIMIT $start, $limit";

$result = mysql_query($sql);


while($row = mysql_fetch_array($result))
{
echo  $row['scientific_name'] . $row['common_name'] . $row['leaf_shape'] ;
}

Hello everyone,

I'm exporting some mysql data to a text file. The data can be selected by checkboxes from a table.

I want to format the text that will be in text file. How do I do that?

This is my code:
Code: [Select]
<?php
if ($_POST['exporttxt']) {
for($i=0;$i<count($_POST['checkbox']);$i++){
   $export_id = $checkbox[$i];
$text = mysql_query("SELECT code FROM tickets WHERE id='$export_id'");
$text = mysql_fetch_assoc($text);
$text = $text["code"];
$filename = "export";
$filedate = date("Y-m-d");
$fileext = ".txt";
$fileall = $filename.$filedate.$fileext;
ob_end_clean();
    header("Content-Type: application/octet-stream");
header("Content-disposition: attachment;filename=\"$fileall\"");
   header("Content-Type: application/force-download");

    header("Content-Type: application/download");
    header("Content-Description: File Transfer");
    header("Content-Length: ".strlen($output).";\n");



echo($text);


}
}

exit();

?>

The data that will be exported are numbers containing of 16 digits. After every number I want to have a line-break. Also if possible I would like to have a space after 4 digits for every number, example:

Number non-formatted: 1234567891234567 Number formatted: 1234 5678 9123 4567

How can I do that?

Hi guys,

Should be a simple 1.

If i have the following at the top of the page:


$page_views = $row['page_views'] + 1;
mysql_query("UPDATE table SET page_views='$page_views'");


and then the following at the bottom of the page:


echo $row['page_views'];


Should I see the page views as 1 the first time the page is visited, 2 the second time the page is visited, and so on......?
At the moment im seeing 0 on the first page visit, 1 on the second page visit, 2 on the third.....

I had this problem before on another page i was working, and i simply solved it by displaying the mysql query above the echo similar to the code above. However now it does not seem to be working.

Am i missing something really simple? lol

Thanks

Hi there, Im working on my little project and I would appreciate your help. I have only basic knowledge of php, mostly I just copy some scripts that could be useful for me. Im trying to find some simple script that allows me to see the written text on web page no. 1 on webpage no. 2.. Something like send the form to email, except I dont want to send it on email, but different webpage. Something like different way of eshop, where you get your order shipped to email, but I wanna send this information to webpage. Is there such a script like Im describing? Probably is but I dont know how to search for this..   Thank You 
Edited by Radim, 21 October 2014 - 07:15 AM.

hello dear PHP-Fans - greetings to you - and a happy new year!!


i set up a WAMP-System on my openSuse 11.4 system.  In order to learn as much as i can bout PHP i want to do some tests and write some scripts.

Well the WAMP is allready up and running.  Now i try to give the writing access to the folder

mkdir /srv/www/

where the php-scripts should go in...

i want  to give write permission to all to all files in /srv/www

As root I generally:

mkdir /srv/www/
chown <webmaster usrername> /srv/www/

/srv/www/ should be readable and traversable by all, but only writeable by it's owner (the user designated as the webmaster.)

can i do this like mentioned above,...

Love to hear from you

greetings
db1

I have an application that was written back in PHP4 days and has ceased development ever since. PHP 4 is basically gone, i can't get it to install on any of my machines now and what i use on my windows boxes (XAMPP) doesn't include PHP4 anymore.

When i set everything up, i get ~50 of these:
Deprecated: Assigning the return value of new by reference is deprecated in....

and on every line it looks like:
$var =& _____ or $var = &something... yada-yada

and removing the & symbol removes the error message. Using editplus i removed all the "=&" and "= &" and just replaced the & with space, i  had read on google PHP5 doesn't need it anymore so that should've worked.

But as my luck would have it, the server errors out with 500 code until i replace all the &'s back, and then the errors show up yet again.


Is there anyway to force php5 to run this program despite having php4 things in it?

i am trying to add a like system to my forum similar to facebook where it shows how many people like a post.

this is my code so far:

$like_list = "";
            
            $likes = explode("|", $post_info['post_likes']);
            $amount_likes = count($likes);
            $ac_likes = ($amount_likes / 2);
            $slice = array_slice($likes, 0, 4, true);
            $remain = array_slice($likes, 4, $ac_likes, true);
            $remain_num = count($remain);
            
            if ($ac_likes >= 4)
            {
                for($i=0; $i<$ac_likes; $i+=2)
                {
                    $like_list .= $likes[$i].", ";
                }
                $like_list .= " and $remain_num others like this";
            }
            elseif ($amount_likes == 1    )
            {
                $like_list .= "0 people like this";
            }
            elseif ($ac_likes == 1)
            {
                $like_list = implode(", ", $likes);
                $like_list .= " likes this";
            }
            else
            {
                $like_list = implode(", ", $likes);
                $like_list .= " like this";
            }

$post_info['post_likes'] contains data like:

Code: [Select]
user1|123456789|user2|123456789
where the number is the timestamp.

unfortunatly $like_list prints the username and the timestamp when i would like it to only display the username. This means
printing every 2nd element in the array starting from 0. I have seen this done with for loops but i am not using one therefore i am stuck. Any ideas? and is this the best database setup for likes? the post_likes column is added on to the end of the post table.

Hi all

I have been looking though loads of tutorials regarding log in method for websites (not APIs), and cant help find that they are outdated.

So I am asking what is the correct way to create a log in system using php?

Modern websites use JavaScript for asynchronous web requests so this requirement should also be catered for. APIs and mobile apps use access tokens which is very secure if implemented correctly.

Can we use the token principle for websites? As the way I see it that most php log in systems use php sessions and they create a session and save some data in this session when the user successfully authenticates, however the session id is held in a cookie so if the cookie is stolen then they have access to your account.

API access tokens are expired and refreshed periodically so is there such a implementation method for web sites too?

  Hi this is my login script i do have the html if you need to see it please ask & i was wondering if anyone would be kind enough to tell me how i can get my ban system to work Thanks

<?php

require 'connect.php';

if(isset($_POST['submit'])) {

	$username = $_POST['username'];
	$password = $_POST['password'];

	//Prevent hackers from using SQL Injection
	$username = stripslashes($username);
	$password = stripslashes($password);
	$username = mysql_real_escape_string($username);
	$password = mysql_real_escape_string($password);

	$sql = "SELECT * FROM $tbl_name WHERE username='$username' AND password='$password'";
	$result = mysql_query($sql);
	$count = mysql_num_rows($result);

	$user_level = $_GET['user_level'];

	$_SESSION['user_level'] = $user_level;

	if($count == 1) {

		$_SESSION['username'];
		$_SESSION['password'];
		header("Location: index.php");
	} else {

		echo "Please check the username and password you entered is correct.";
	} if($_SESSION['user_level'] == 0) {
		$_SESSION['username'];
		$_SESSION['password'];
		header("Location: index.php");
		
	} else if($_SESSION['user_level'] == -1) {

		die();
		header("Location: banned.php");

	} else if($_SESSION['user_level'] < -1) {
		die();
		echo "An error has occurred please contact your administrator.";

	} else if($_SESSION['user_level'] == 1) {
		$_SESSION['username'];
		$_SESSION['password'];
		header("Location: admin.php");

	}


}

?>

Edited by Tom8001, 23 November 2014 - 12:18 PM.

I've abandoned my old script and switched to this one: http://www.evolt.org/node/60384

I got it working on my site just fine (djsmiley.net/members/register - you can test it out if u want). i just want to know how i can put all of the code into the pages i created using my template.

It doesn't specify how this can be done in the tutorial, which is why im confused. I've tried everything but keep getting errors. Help?

Hi, can anyone help show me or tell me where I can find out how I can create a comment box system that will get the members userid/username and post it with the comment when it has been submitted on the page. e.g the way youtube displays comments with the username and then the comment underneath.

thanks,

I'm trying to build a login system and alot of the code is similar to what i used to make my news cms. basically all i wanna accomplish right now is to get the user input inserted into my database. I've already tested it out, and I get no errors, but like with the cms, the database isn't getting queryed.

Here's the code:
(process.php)
Code: [Select]
<?php
 $first_name=$_POST['first_name']; 
 $last_name=$_POST['last_name']; 
 $age=$_POST['age']; 
 $city=$_POST['city']; 
 $state=$_POST['state']; 
 $country=$_POST['country']; 
 $zip=$_POST['zip']; 
 $birthdate=$_POST['birthdate']; 
 $gender=$_POST['gender']; 
 $sexuality=$_POST['sexuality']; 
 $race=$_POST['race']; 
 $religion=$_POST['religion']; 
 $status=$_POST['status']; 
 $about=$_POST['about']; 
 $website=$_POST['website']; 
 $user_name=$_POST['user_name']; 
 $password=$_POST['password']; 
 $email=$_POST['email']; 
 mysql_connect("your hostname", "your database name", "your password") or die(mysql_error()); 
 mysql_select_db("your database name") or die(mysql_error()); 
 
 $sql = sprintf("INSERT INTO Users (first_name, last_name, age, city, state, country, zip, birthdate, gender, sexuality, race, religion, status, about, website, user_name, password, email)
VALUES ('%s', '%s', '%s', '%s', '%s')",
mysql_real_escape_string($first_name),
mysql_real_escape_string($last_name),
mysql_real_escape_string($age),
mysql_real_escape_string($city),
mysql_real_escape_string($state),
mysql_real_escape_string($country),
mysql_real_escape_string($zip),
mysql_real_escape_string($birthdate),
mysql_real_escape_string($gender),
mysql_real_escape_string($sexuality),
mysql_real_escape_string($race),
mysql_real_escape_string($religion),
mysql_real_escape_string($status),
mysql_real_escape_string($about),
mysql_real_escape_string($website),
mysql_real_escape_string($user_name),
mysql_real_escape_string($password),
mysql_real_escape_string($email));
$result = mysql_query($sql); 
 
 
 Print "Congratulations! You are now a registered member on yourwebsite.com!"; 
 ?>
(register/index.php)
Code: [Select]
<script language = "Javascript">
 
function Validate()
{
    if (document.register.first_name.value == '')
    {
        alert('You have not specified your first name!');
        return false;
    }
if (document.register.last_name.value == '')
    {
        alert('You have not specified your last name!');
        return false;
    }
if (document.register.age.value == '')
    {
        alert('You have not specified your age!');
        return false;
    }
if (document.register.country.value == '')
    {
        alert('You have not entered a country!');
        return false;
    }
if (document.register.birthdate.value == '')
    {
        alert('You have not entered your date of birth!');
        return false;
    }
if (document.register.gender.value == '')
    {
        alert('You have not specified your gender!');
        return false;
    }
if (document.register.user_name.value == '')
    {
        alert('You have not entered a username!');
        return false;
    }
if (document.register.email.value == '')
    {
        alert('You have not entered an email!');
        return false;
    }
if (document.register.password.value == '')
    {
        alert('You have not entered a password!');
        return false;
    }
    return true;
}
</script>
      <form name="register" method="post" action="http://www.djsmiley.net/register/process.php" onsubmit="return Validate();">
                    <table width="100%" border="0">
                      <tr>
                        <td>First Name:</td>
                        <td><label>
                          <input type="text" name="first_name" id="first_name" />
                        </label></td>
                      </tr>
                      <tr>
                        <td>Last Name:</td>
                        <td><input type="text" name="last_name" id="last_name" /></td>
                      </tr>
                      <tr>
                        <td>Age:</td>
                        <td><input type="text" name="age" id="age" /></td>
                      </tr>
                      <tr>
                        <td>City:</td>
                        <td><input type="text" name="city" id="city" /></td>
                      </tr>
                      <tr>
                        <td>State:</td>
                        <td><input type="text" name="state" id="state" /></td>
                      </tr>
                      <tr>
                        <td>Country:</td>
                        <td><input type="text" name="country" id="country" /></td>
                      </tr>
                      <tr>
                        <td>Zip:</td>
                        <td><input type="text" name="zip" id="zip" /></td>
                      </tr>
                      <tr>
                        <td>Birthdate:</td>
                        <td><input type="text" name="birthdate" id="birthdate" /></td>
                      </tr>
                      <tr>
                        <td>Gender:</td>
                        <td><input type="text" name="gender" id="gender" /></td>
                      </tr>
                      <tr>
                        <td>Sexuality:</td>
                        <td><input type="text" name="sexuality" id="sexuality" /></td>
                      </tr>
                      <tr>
                        <td>Race:</td>
                        <td><input type="text" name="race" id="race" /></td>
                      </tr>
                      <tr>
                        <td>Religion:</td>
                        <td><input type="text" name="religion" id="religion" /></td>
                      </tr>
                      <tr>
                        <td>Marital Status:</td>
                        <td><input type="text" name="status" id="status" /></td>
                      </tr>
                      <tr>
                        <td>About You:</td>
                        <td><label>
                          <textarea name="about" id="about" cols="45" rows="5"></textarea>
                        </label></td>
                      </tr>
                      <tr>
                        <td>Website:</td>
                        <td><input type="text" name="website" id="website" /></td>
                      </tr>
                      <tr>
                        <td width="13%">Username: </td>
                        <td width="87%"><input type="text" name="user_name" id="user_name" /></td>
                      </tr>
                      <tr>
                        <td>Email: </td>
                        <td><input type="text" name="email" id="email" /></td>
                      </tr>
                      <tr>
                        <td>Password: </td>
                        <td><input type="password" name="password" id="password" /></td>
                      </tr>
                      <tr>
                        <td>&nbsp;</td>
                        <td><input name="Register Button" type="submit" class="Button1" id="Register Button" value="Register" />
                        <input name="Reset Button" type="reset" class="Button1" id="Reset Button" value="Clear" /></td>
                      </tr>
                    </table>
                    <label></label>
      </form>

Hey guys,
I'm starting to build a website and I was wondering wether I should use a library template engine such as smarty, or use pure php, such as this tutorial - http://www.massassi.com/php/articles/template_engines/

Basically the website will not expose any of the users/designers to the designer portion of the website. I am scratching my head wether I should use smarty or pure php, even Facebook uses smarty, from what I have heard. I need some answers.

Thank you all!

I already have a web based RPG game I am developing. Here is a small video to showcase the loot animation.     My problem is, I want to add combat. I will be using html 5 websockets. I already have a websockets server up so multiplayer isn't the issue.   A good combat system I found is on this game: http://treasurearena.clay.io/   I'm not going to dig out the source code, and try to extract the combat system from this game. Just trying to find something similar that I can use, does anyone have any recommendations?   Thanks!   Edit: It can be as simple as swinging a freaking sword and moving. That's all I really want, I just don't want the boring 'click', 'click', and 'click' bullshit.

I have database table EMAIL[e_id,receiver_email,sender_email,email_Subject,date_time,Text_body]

i have displayed sender_email,Email_subject,Date_time in html table
by using
 select sender_email,Email_subject,Date_time from email where receiver_email=$current _user
i need to open email_body by clicking the sender_email
problem is that how can i get value of first cell of table in the same row by clicking any other column
or if you have alternative
as yahoo displayes all emails received in inbox
by clicking any sender it opens that specific email