x_wd11
Members-
Posts
19 -
Joined
-
Last visited
Everything posted by x_wd11
-
Would you know how to extract the number of user that is in a particular table? $q = "SELECT COUNT(user) FROM table1 WHERE user = 'glenn'"; $r = @mysqli_query($dbc, $q); //$num = mysqli_num_rows($r); //$id = mysqli_fetch_field($r); //$id = mysqli_fetch_array($r); $id = mysqli_fetch_assoc($r); echo 'r user number '. $r .'<br>'; echo 'n user number '. $num .'<br>'; echo 'n user number '. $id .'<br>'; I get different errors BUT no result! Warning: mysqli_num_rows() expects parameter 1 to be mysqli_result, boolean given in Warning: mysqli_fetch_array() expects parameter 1 to be mysqli_result, null given in Thank you much.
-
In a file that has several "functions" f1, f2, fn you need to put the ".../mysqli.php" call to every one of the functions, correct? Or can you have it at the top of the file and just use "mysqli_query($dbc,$x)" in each of the functions referencing mysqli? In my file it is not visible to functions if trying to set the sql connection at the top of the file. Thanks
-
Would you tell me how to find out where this is coming from: Notice: Constant DB_USER already defined in C:\mysqli.php on line 8 Notice: Constant DB_PASSWORD already defined in C:\mysqli.php on line 9 Notice: Constant DB_HOST already defined in C:\mysqli.php on line 10 Notice: Constant DB_NAME already defined in C:\mysqli.php on line 11 In some cases it works fine but, it does not show up but now it is showing and cannot find where it is generated. Thank you.
-
I think I got it, I got some mess in those scripts, cannot keep track of them somehow. Wrong script, but it was working and then it quit, that is why I got confused, the later scripts do have a different setup and so easy to get carried away with the implementation that should be using different script.
-
I do NOT understand this: "password_verify($p, $row['passward'])" where: $p = 123456 while this is in DB: ba3253876aed6bc22d4a6ff53d8406c6ad864195ed144ab5c87621b6c233b548baeae6956df346ec8c17f5ea10f35ee3cbc514797ed7ddd3145464e2a0bab413 ??? if (empty($errors)) { // If everything's OK. $q = "SELECT user_id, first_name, passward FROM users WHERE user='xyz' AND passward=SHA2('$p', 512)"; $r = mysqli_query($dbc, $q); // Run the query. // Check the result: if (mysqli_num_rows($r) == 1) { // Fetch the record: $row = mysqli_fetch_array($r, MYSQLI_ASSOC); // Return true and the record: // Check the password: if (password_verify($p, $row['passward'])) { unset($row['passward']); return [true, $row]; } else { $errors[] = 'The user name and password do not match those on file.'; } // - The user name and password entered do not match those on file. ???? } else { // Not a match! $errors[] = 'The user-name and password entered do not match those on file.'; }
-
Which table do I insert to first, table1 that does have the FOREIGN KEY (file_id) REFERENCES userinfo(user_id) or the table2 that does NOT have the constrain? I am trying to insert into both tables at a sequence, table1 and then table2, BUT I get this error: "Cannot add or update a child row: a foreign key constraint fails...!" Should I insert first into table2 and then into table1? Thanks $q1 = "INSERT INTO table1 ... $r1 = @mysqli_query($dbc, $q1); // Run the query. if ($r1) { // If it ran OK. $q2 = "INSERT INTO table2 ... $r2 = @mysqli_query($dbc, $q2); if($r2){...
-
I do get the right results when I enter the query in workbench. I found that when I call login screen and enter “correct values” and execute, it clears the fields and stays at the login screen BUT when I enter “incorrect values" it executes properly and displays errors that those values are incorrect!? After a day of messing with that I finally checked the script and it was from the earlier chapter. It works now. Thanks
-
what is the difference between your sql call and my sql call: // $q = "SELECT user_id, first_name FROM users WHERE $userid AND pass=SHA2('$p', 512)"; $q = "SELECT user_id, first_name, username FROM users WHERE username='$uname' AND pass=SHA2('$p', 512)"; $r = @mysqli_query($dbc, $q); // Run the query. // Check the result: if (mysqli_num_rows($r) == 1) { echo 'check_login == 1'; // Fetch the record: $row = mysqli_fetch_array($r, MYSQLI_ASSOC); // Return true and the record: return [true, $row]; } else { // Not a match! // 'The email address and password entered do not match those on file.'; $errors[] = 'The user name and password entered do not match those on file.'; } it does not return anything, it just stays in index.php calling login screen over and over!? It does not enters the "if" statement. Thank you
-
Do I set the cookie first or session? <li><?php // Create a login/logout link: if ( (isset($_COOKIE['user_id'])) && (basename($_SERVER['PHP_SELF']) != 'logout.php') ) { if (isset($_SESSION['user_id'])) { echo '<a href="logout.php">Logout</a>'; } else { echo '<a href="login.php">Login</a>'; } } else { echo '<a href="login.php">Login</a>'; } ?></li> Or do I set the cookie at a later time? Also, there's a session call in login and then in loggedin, both files need to call for session start? I do not believe you say that anywhere in the chapter if both are required. Thanks
-
Well, I jumped over all the chapters right to the 17th and 18th and combined users table with the other user table, so I had 2 such tables in one DB ... . Now I am back where I should be and already made it to ch11. One has to be very creative to follow thru but I did figure out finally how to work with the pictures. Not easy some of the stuff to follow but it can be done. I think I can skip over the transfers, it's more about shopping card I guess, it's not used for my web idea. Thanks.
-
I cannot figure out where I am redefining these values: An error occurred in script 'C:\www\httdocs\ulproject\mysqli_connect.php' on line 8: Constant DB_USER already defined Warning: print_r(): Couldn't fetch mysqli_result in C:\www\httdocs\ulproject\includes\config.inc.php on line 47 An error occurred in script 'C:\www\httdocs\ulproject\mysqli_connect.php' on line 9: Constant DB_PASSWORD already defined my_error_handler(8, Constant DB_HOST already defined, Warning: print_r(): Property access is not allowed yet in C:\www\httdocs\ulproject\includes\config.inc.php on line 47 Warning: print_r(): Couldn't fetch mysqli_result in C:\www\httdocs\ulproject\includes\config.inc.php on line 47 You probably know where these issues are coming from, would you let me know, thanks much.
-
I get an error while setting up db for ch17: ERROR 1366 (HY000) at line 75: Incorrect string value: '\xEAs' for column 'lang' at row 2, it is the line right bellow the # ERROR ... ? Would you help figuring out the cause? Thank you. CREATE TABLE words ( word_id TINYINT UNSIGNED NOT NULL AUTO_INCREMENT, lang_id TINYINT UNSIGNED NOT NULL, title VARCHAR(80) NOT NULL, intro TINYTEXT NOT NULL, home VARCHAR(30) NOT NULL, forum_home VARCHAR(40) NOT NULL, language VARCHAR(40) NOT NULL, register VARCHAR(30) NOT NULL, login VARCHAR(30) NOT NULL, logout VARCHAR(30) NOT NULL, new_thread VARCHAR(40) NOT NULL, subject VARCHAR(30) NOT NULL, body VARCHAR(30) NOT NULL, submit VARCHAR(30) NOT NULL, posted_on VARCHAR(30) NOT NULL, posted_by VARCHAR(30) NOT NULL, replies VARCHAR(30) NOT NULL, latest_reply VARCHAR(40) NOT NULL, post_a_reply VARCHAR(40) NOT NULL, PRIMARY KEY (word_id), UNIQUE (lang_id) ); # ERROR 1366 (HY000) at line 75: Incorrect string value: '\xEAs' for column 'lang' at row 2 INSERT INTO languages (lang, lang_eng) VALUES ('English', 'English'), ('Português', 'Portuguese'), ('Français', 'French'), ('Norsk', 'Norwegian'), ('Romanian', 'Romanian'), ('Ελληνικά', 'Greek'), ('Deutsch', 'German'), ('Srpski', 'Serbian'), ('日本語', 'Japanese'), ('Nederlands', 'Dutch');
-
where initialize
x_wd11 replied to x_wd11's topic in PHP and MySQL for Dynamic Web Sites: Visual QuickPro Guide (2nd Edition)
sorry, I got it all wrong, it should be the PHP and Mysql web development that I am referring to, so, you might get rid off this post, sorry.