PHP - Time Php / Mysql Script Help

hey, here is the code I am using.

Code: [Select]
mysql_connect("localhost","XXXXXX","XXXXXX") or die("Could not connect.");
mysql_select_db("XXXXXX");

$query="SELECT * FROM VIDEO_SESSIONS";
$result=mysql_query($query);

while ($db_field = mysql_fetch_assoc($result)) {
$timeslider = $db_field['timeslider'];
}

$message=$_POST['message'];

$name=$me['first_name'];

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

    if(strlen($message)<1)

   {
      print "You did not input a message";
   }

   else if(strlen($name)<1)

   {
      print "Please login with Facebook to post a message";
   }

 
      else

      {


         $insertmessage="INSERT INTO CHAT_SESSIONS
(user_id,user_message,current_time)
VALUES
('$name', '$message', '$timeslider')";
         mysql_query($insertmessage);
         echo mysql_error();


      }

   }


?>
I am getting this error everytime I try and INSERT into the database

" 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 'current_time) VALUES ('Luke', 'Hello?', '00:23:00')' at line 2 "

it works fine without the '$timeslider' which is a time stored on the database in the format 00:00:00
why does it not want to store the time back in a different table.. same format!?

I need to write a bit of code to select some mp3's (actually, just the titles) from a database...but I need to select them based on last play (which is a timestamp field in the DB) AND I need to select 14 minutes worth of them (and not more than 15 minutes).  I currently do NOT know how long each song is...

So, if every song was 2 minutes long, I would need 7 songs.  If each song was 3 minutes long, I'd need to select 5 of them.

I currently do NOT have a length field in the db (the boss sprung this on me after I designed the DB).  A few questions:

Would it be best to have a column of TIME (mysql time...not the name of the column)? 

Would it be best to have a column for the raw size of the file (each file is the same bitrate, so I could do the math - plus it would be probably be easier to import raw filesize using php into the db)

Would it be easier to do something else?

Once we answer that, I'll start with some code...and probably be back for help!

Hello guys. I am creating a PHP/mySQL based RPG. I have implemented training feature in it. So i want to make training possible every 15 minutes or so. Can you give me an advice how to achieve that? Thank you!

Hey guys, im having a slight issue with comparing mysql time stamp.
I'm using the timestamp in mysql to show how many people are online with in 5 minutes.

$sql = mysql_query("SELECT name,id FROM users WHERE DATE_SUB(NOW(),
INTERVAL 5 MINUTE) <= last_active ORDER BY id ASC"); 

But I want to grab last_active from the data base and compare it like below.  I dont know if strtotime just doesnt compare with mysql time stamp or what?

if($last_active > strtotime('-5 minutes')) {

echo "<td>Online</td>";
}else{
echo "<td>Offline</td>";

} 

I am just helping out a friend with his online store that he would like to add multiple currencies to. I made this script to help him out:
$price = 99.95;
$default_currency = 20;
// displays all the file nodes
if(!$xml=simplexml_load_file('http://www.ecb.int/stats/eurofxref/eurofxref-daily.xml')){
    trigger_error('Error reading XML file',E_USER_ERROR);
} else { 
$array['currency'][1] = 'EUR';
$array['value'][1] = 1.00;
$i = 2;
foreach ($xml->Cube->Cube->children() as $node) {
$arr = $node->attributes();   // returns an array
$array['currency'][$i] = $arr['currency'];
$array['value'][$i] = $arr['rate'];
$i++;
}
}
if (isset($_POST['currency'])){
$currency = $_POST['currency'];
} else {
$currency = $default_currency;
}
$price = $array['value'][$currency] / $array['value'][$default_currency] * $price;
$price = round($price, 2);
$currency_name = $array['currency'][$currency];
echo '<p>Price is '.$currency_name.$price.'<br />
To change currency, select from dropdown box below.</p>';
echo '<form action="currency.php" method="post"><select name="currency">';
$i = 1;
foreach ($array['currency'] as $value){
echo '<option value="'.$i.'">'.$value.'</option>';
$i++;
}
echo '</select><br /><input type="submit" /></form><br />';

$i = 1;
foreach ($array['currency'] as $value){
echo '<p>'.$value.' = '.$array['value'][$i].'</p>';
$i++;
}

But for some reason it only works some of the time and I can't work out why for the life of me.

If I could get some help in the matter, that would be greatly appreciated.

A link to the above example can be found here.

Regards,

I.

Does any one know how to run PHP script automatically at specific time interval in my local machine. I am using Windows 7. What about using the Task scheduler ? Please write to me in details how to give the path of the php page in Task Scheduler.

HI,   I was trying do add a function to my script to stop each 10 seconds, using max_execution_time. Apparently is not working and most probably from the php.ini file, that I can t change because I want for the others script to run normally.   How can I write a function inside a php file to stop everything after 10 seconds.

  Or how can I make a script to stop after 100 processed items and start again after 30 seconds. I need to stop this file somehow.     $processedItems++;

I've heard about a function that does so, but I did not have much luck implementing it. Is is possible for me to get the time my file was modified in this script?

Code: [Select]
<html><head>
<title>RCM File List</title>
<link rel="stylesheet" type="text/css" a href="/rcm/stylesheet.css">
</head>
<body>
<h1>Files in RCM Directory</h1>
<?php
$dir="C:/xampp/htdocs/rcm/*txt";


foreach(glob($dir) as $file)
{
$list = "<li><a href='readfile2.php'>Filename: $file</a></li><br>";
}
?>

<ul>
<?php echo $list; ?>
</ul>
</body>
</html>

I created a "statistics of site" page, stats.php.
Currently stats.php updates every visit, that's over 25 queries for every visit, with over 9,000 visits a day, I wish to cut down.
What is the best way to make it so all queries are done every hour, therefore requiring less queries to the database?
I assume the best way to go at this would be either to run a time() based script every 60 minutes and:

  - update this to a new field, then stats.php will require 1 query every visit, plus the 1 every hour.
or
  - update a text file and read that each stats.php visit, meaning just the 1 query every hour.

Now, I understand the second option will run much less queries overall, but is it the best way to go? Is there a better way to go about doing this?

Hi,

I'm trying to insert this

$inceptiondate = date("Y-m-d 12:00:00");

to the database, the Y-m-d does make it to database, but the 12:00pm doesn't.
Whenever it reaches the database, it becomes 00:00:00

Where did I got wrong?

Thanks

Is there any simple way I can log the execution time of each mysql query that is executed on a page, maybe with a register shutdown function, I have been trying to profile and reduce execution time of the CRM / tracking system at work and have used a register shutdown function to log page execution time. We were unsure of wither it was the internet connection, browsers having a hard time rendering nested tables(the code is OLD), or mysql queries taking too long to execute.


Yesterday I started re-coding a script and I got to a query, it returned one row/field and had a limit 1, but it searched for an md5 has in the where clause, as soon as I added this query in my re-code it took execution time from 1s to 13s, I ran the query in phpmyadmin and the execution time was 0.5s, this was running in a loop which returned about 20 rows, I added an index on the md5 hash field and the query then took 0.0005s to load, I now want to do this for all scripts on the system.


Any ideas?

Thanks

// EDIT,

please note that I don't have shell access, I only have access to the scripts, plesk panel and PHPmyadmin

I get a "No database selected" error whenever I submit information on my register.php page, which is:


<?php

include_once('includes/config.php');
include_once('functions.php');

$return_content = AccountRelated(null, null, 3);

?>

<html>
<head>
<link rel="stylesheet" type="text/css" href="style/style.css" />
<title><?php echo $title; ?></title>
</head>
<body>

<div class="logo"><a href="index.php"><img src="style/images/logo.png" border="0"></a></div>

<center>

<div class="background">

<div class="container">

<?php echo $return_content; ?>

</div>

</div>
</center>

</body>
</html>


But after I click submit, I get the "No database selected" error, but using WAMP, I include config.php which holds the following details:


<?php

$title = "NovaUpload - File Uploader";

mysql_connect("localhost", "", "");
mysql_select_db("data");

?>


And if functions.php is required, he


<?php

function AccountRelated($username, $password, $query_type)
{

if($query_type == 1)

{

$set_query = mysql_query("SELECT COUNT(d.username), u.date, u.username FROM uploads d, users u WHERE d.username = '$username' AND u.username = '$username' LIMIT 1") or die(mysql_error());

//user must not exist

if(mysql_num_rows($set_query) == 0)

{

$content_return = 'Sorry, no information was found';

}

else

{

$grab = mysql_fetch_assoc($set_query);

//login information

if($grab['COUNT(d.username)'] > 0)

{

$welcome_return = "You have uploaded ". $grab['COUNT(d.username)'] ." files. You've registered on ". $grab['u.date'] ."!";

}

else

{

$welcome_return = "You have uploaded 0 files. You've registered on ".$grab['date'] . "!";

}

}

}

elseif($query_type == 2)

{

$set_query = mysql_query("SELECT title,views,downloads,description,username,date FROM uploads LIMIT 20");

if(mysql_num_rows($set_query) == 0)

{

$content_return = "Sorry, there are currently no files uploaded to view.";

}

else

{

//display all files

while($row = mysql_fetch_assoc($set_query) == 0)

{

echo $row['title']."<br/>";

}

}

}

elseif($query_type == 3)

{

$username = mysql_real_escape_string($_POST['username']);

$password = sha1(sha1(md5($_POST['password'])));

if(!$username || !$password)

{

$return_content = "All fields are required! <table><form action='register.php' method='POST'>

<tr><td>Username</td><td><input type='text' name='username' maxlength='20'></td></tr>

<tr><td>Password</td><td><input type='text' name='password' maxlength='30'</td></tr>

<tr><td><input type='submit' value='Register'></td></tr>

</form></table>";

}

else

{

$set_query = mysql_query("SELECT username FROM users WHERE username = '$username' LIMIT 1");

if(mysql_num_rows($set_query) == 0)

{

$return_content = "You have successfully registered the account ". $username ." with the

password ". $_POST['password'] ."!";

mysql_query("INSERT INTO users VALUES (null, '$username', '$password', 0, 0, '". date("M-d-Y") ."', '". $_SERVER['REMOTE_ADDR'] ."')") or die(mysql_error());

}

else

{

$return_content = "An account with this username already exists.";

}

}

return $return_content;

}

else

{

//nothing to process

}
}
?>

What needs to be changed to make this work...
Code: [Select]
// Build query.
$q2 = "UPDATE member
SET logged_in=?,
last_activity=time(),
updated_on=NOW()
WHERE id=?
LIMIT 1";

Apparently PHP doesn't like time()   


Debbie

Hello..
I'm a somewhat beginner in php, but i decided to create my own basic forums system with a content managing system. Right now I'm trying to figure out how to make a thread link be at the top of the list for the forum display page, when someone posts a response or creates a new thread. HELP MUCH APPRECIATED 

guys, please help

i have table with datas like speed of vehicle, position e.t.c from morning 8 a.m. to 8 p.m.

I need to get these details, but after every 15 minutes
i.e. after selecting datas at 8 a.m. it shd select datas @ 8.15 a.m. then 8.30 a.m.

hw can i write a mysql query for this ? or a PHP approach is appreciated