Private message system PART 11 error

[cnbsII]

function fetch_conversation_summery(){

	$sql = "SELECT
				conversations.conversation_id,
				conversations.conversation_subject,
				MAX(conversations_messages.message_date) AS conversation_last_reply,
				MAX(conversations_messages.message_date) > conversations_members.conversation_last_view AS conversation_unread
			FROM conversations
			LEFT JOIN conversations_messages ON conversations.conversation_id = conversations_messages.conversation_id
			INNER JOIN conversations_members ON conversations.conversation_id = conversations_members.conversation_id
			WHERE conversations_members.user_id = {$_SESSION['user_id']}
			AND conversations_members.conversation_deleted = 0
			GROUP BY conversations.conversation_id
			ORDER BY conversation_last_reply DESC";
			
	$result = mysql_query($sql);
	

	$conversations = array();

	while(($row = mysql_fetch_assoc($result)) !== FALSE){
		$conversations[] = array(
			'id'				=> $row['conversation_id'],
			'subject'			=> $row['conversation_subject'],
			'last_reply'		=> $row['conversation_last_reply'],
			'unread_messages' 	=> ($row['conversation_unread'] == 1) //it will =1 if it's true
		);
	}
	
	return $conversations;
}






function create_conversation($user_ids, $subject, $body){
	$subject = mysql_real_escape_string(htmlentities($subject));
	$body = mysql_real_escape_string(htmlentities($body));
	mysql_query("INSERT INTO conversations (conversation_subject) VALUE ('{$subject}')");
	
	
	
	$conversation_id = mysql_insert_id();
	$sql = "INSERT INTO conversations_messages (conversation_id, user_id, message_date, message_text) VALUES ({$conversation_id}, {$_SESSION['user_id']}, UNIX_TIMESTAMP(), '{$body}')";	
	
	mysql_query($sql);
	

	$values = array();
	

	$user_ids[] = $_SESSION['user_id'];
	
	foreach($user_ids as $user_id){
		$user_id = (int) $user_id; 
		$values[] = "({$conversation_id}, {$user_id}, 0, 0)";
	}

	$sql = "INSERT INTO conversations_members (conversation_id, user_id, conversation_last_view, conversation_deleted) VALUE " . implode(", ", $values);
	
	mysql_query($sql);
}


//check to see if the given user is a member of the given conversation.
function validate_conversation_id($conversation_id){
	$conversation_id = (int)$conversation_id;
	
	$sql = "SELECT COUNT(1)
			FROM conversations_members
			WHERE conversation_id = {$conversation_id}
			AND user_id = {$_SESSION['user_id']}
			AND conversation_deleted = 0";
	
	$result = mysql_query($sql);

	return (mysql_result($result, 0) == 1);
}



function delete_conversation($conversation_id){
	$conversation_id = (int)$conversation_id;
	
	$sql = "SELECT DISTINCT conversation_deleted
			FROM conversation_members
			WHERE user_id != {$_SESSION['user_id']}
			AND conversation_id = {$conversation_id}";
	
	$result = mysql_query($sql);

	if(mysql_num_rows($result) === 1 && mysql_result($result, 0) == 1){
		mysql_query("DELETE FROM conversations WHERE conversation_id = {$conversation_id}");
		mysql_query("DELETE FROM conversations_members WHERE conversation_id = {$conversation_id}");
		mysql_query("DELETE FROM coversations_messages WHERE conversation_id = {$conversation_id}");
		
	} else {
		
		$sql = "UPDATE conversations_members
				SET conversation_deleted = 1
				where conversation_id = {$conversation_id}
				AND user_id = {$_SESSION['user_id']}";
				
		mysql_query($sql);
	}
	
}














	

I check over and over and all code is correct, not sure why this happen.
ERROR:

( ! ) SCREAM: Error suppression ignored for
( ! ) Warning: mysql_num_rows() expects parameter 1 to be resource, boolean given in C:\wamp\www\betterPHP\private_message_system\core\inc\private_message.inc.php on line 97

[sturekdrf]

Could be wrong but for database stuff shouldnt you be using ' ' in there like below?
mysql_query("DELETE FROM 'conversations' WHERE 'conversation_id' = {$conversation_id}");

[Temor]

Adding

echo mysql_error();

under the query that is failing should tell you what's wrong.

[cnbsII]

Adding

echo mysql_error();

under the query that is failing should tell you what's wrong.

after when i echo mysql_error(); there is nothing happen, and it appear the same error message.

[Temor]

where did you put the mysql_error(); line?

The problem appears to be at the second delete query.

  mysql_query("DELETE FROM conversations_members WHERE conversation_id = {$conversation_id}");

I would suggest you start adding backticks around your tables and rows. Like this:

  mysql_query("DELETE FROM `conversations_members` WHERE `conversation_id` = {$conversation_id}");

Are all the table and column names spelled correctly? Compare it with the names in phpmyadmin.

[cnbsII]

where did you put the mysql_error(); line?

The problem appears to be at the second delete query.

  mysql_query("DELETE FROM conversations_members WHERE conversation_id = {$conversation_id}");

I would suggest you start adding backticks around your tables and rows. Like this:

  mysql_query("DELETE FROM `conversations_members` WHERE `conversation_id` = {$conversation_id}");

Are all the table and column names spelled correctly? Compare it with the names in phpmyadmin.

Hi, I put mysql_error(); in line 96, and after i test it, it have the same result. than i try again put it at line 99, also having the same error.

Also tried to put all the backticks around the tables, and i did check the spelling it match them all. Please check the attachment.

[jacek]

Hmm, the line number suggests that this is the failing query

$sql = "SELECT DISTINCT conversation_deleted
                        FROM conversation_members
                        WHERE user_id != {$_SESSION['user_id']}
                        AND conversation_id = {$conversation_id}";
       
        $result = mysql_query($sql);

if you added the mysql_error() like this

$sql = "SELECT DISTINCT conversation_deleted
                        FROM conversation_members
                        WHERE user_id != {$_SESSION['user_id']}
                        AND conversation_id = {$conversation_id}";
       
        $result = mysql_query($sql);
        echo mysql_error();

it should have worked.

You could also try running that query in phpmyadmin to see what's going on.

[cnbsII]

THANK YOU,, I FIGURE IT ALREADY, I MISSED A (S)