The mysqli extension, or as it is sometimes known, the MySQL improved extension, was developed to take advantage of new features found in MySQL systems versions 4.1.3 and newer. The mysqli extension is included with PHP versions 5 and later.

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Are these the correct functions for creating a database connection,creating table,cleaning data for D.B and inserting the data in database in php? [duplicate]

Initialising variables Is this the correct code of the database connection function?( Assuming we have connected to the Database) ...
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1answer
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2
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48 views

PHP MySQLi database wrapper

I am developing a mysqli database wrapper. I've made an effort to make this as fast as possible and easy to use. However, now I want to start adding callbacks (for ...
5
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2answers
79 views

Average of averages

I need to get the average of multiple averages calculated basing on data contained on a sql database. To do that, I'm using this code: ...
5
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1answer
37 views

Doing a roll back with multiple MySQLI prepared statement

This is my code for doing a roll back with multiple MySQLI prepared statement. I want to know if anything is wrong with the code. ...
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2answers
69 views

Does this code avoid SQL injection?

I have the following PHP code but I'm unsure, based on the many things I've read, whether or not this is actually safe from an SQL injection attack. ...
5
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2answers
224 views

Database Handler Class

I've written this DB Handler class. Please review it and suggest any code edits or point out mistakes and security loop holes. Please also suggest a better way to handle things, if there is a security ...
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3answers
260 views

Check if URL contains different strings

The code it self is pretty self explanatory, however i do not think it is very efficient at all. Is there a better way to do this? Its basically so i can track spam sites and save the sites into my ...
4
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2answers
117 views

PHP and MySQLi login script - is it secure / am I doing something wrong?

Below is the code for my login page. I haven't really used MySQL (especially OOP) before, so I'd like to know if I'm doing something inherently wrong. The code is working as expected, but I don't ...
7
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4answers
650 views

PHP OOP Login Class

This is a login class I made for my personal website. What I don't care about, is how secure this login class is, because I know it's not. But it keeps out the rare unwanted guests because I do not ...
7
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3answers
291 views

MySQL update with PHP; MySQLi prepared statement in loop

I'm going to develop an Android application that performs simple MySQL operations by invoking server-sided PHP scripts. PHP-MySQL communication is done by MySQLi extension. Each operation that I'd ...
10
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2answers
549 views

SQL injection safety check

I was wondering if my code is safe for sql injection. This code just checks if the username exists in my db or not. ...
4
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4answers
512 views

Two while for the same query

If I have to loop results of a query echoing first all fields of a column, then echoing something not to loop, then fields of another column. ...
4
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2answers
184 views

Updating necessary data using just one function

My objective is to update necessary data using one function instead of having different functions to update different fields. So, I've created one and I think this is not really elegant, efficient or ...
3
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2answers
288 views

Dynamically load data into bootstrap accordion navigation bar

I have made a bootstrap accordion navigation bar that loads data dynamically from a database with PHP. Here are the two tables that I use: ...
3
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1answer
53 views

Outputting results from a conditional row count across multiple tables

Follow up question for: Conditional row count across 4 tables After getting some excellent help from 200_success, i managed to output the SUM() total of my query ...
10
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2answers
148 views

Update of Classes for user registration and authentication

Old Post: Classes for user registration and authentication This post is an update of the old post of mine. This is the code after suggestions were implemented in the review. Do you think I could make ...
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2answers
290 views
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1answer
125 views

SQL Tic-Tac-Toe attempt

In an attempt to practice conditional statements in SQL I decided to design a tic-tac-toe game with MySQL. Let me know if you think any of the steps could be done better. Step 1: Create the game ...
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2answers
124 views

SQL Injection when not using variables

Do I still need to protect my code against SQL injection when I'm not using variables in SQL queries? Is this code still vulnerable?: ...
2
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1answer
113 views

SQL injection security

I wanted to know if this code is safe against SQL injection or not? Also do I need to mysqli_close if I already did the ...
2
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0answers
63 views

Pagination object oriented

This a little pagination script that I am writing "Object Oriented" and I have no idea how to set the current page equal to total page, if the current page is greater. I also would really like it if ...
4
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1answer
52 views

Blog engine or somesuch

Would someone tell how I can improve this piece of code? ...
6
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2answers
94 views

Modifying `sakila` database

This is not "real life" code. I'm trying to expand upon the well known Sakila sample database for MySQL to make it more complex. Step 7 (or 6) is running ...
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2answers
110 views

How is my injection protection?

What do I need to do to prevent injections? In addition, if I have any statement/parameter errors, please tell me. ...
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2answers
138 views

MySQLi-extension class (parameterized queries)

I've written some code today to be able to dynamically execute prepared statements/parameterized queries. I need a fresh pair of eyes to look through my code for eventual performance gains that can ...
6
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3answers
2k views

First PHP login system

This is my first attempt at a login system! I've only had roughly 2 days of experience with MySQL and PHP so far and this is what I came up with: ...
7
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1answer
109 views

Optimize web-scraping of Moscow grocery website

This code works fine, but I believe it has optimization problems. Please review this. Also, please keep in mind that it stops after each iteration of the loop ...
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1answer
82 views

Selecting one MySQL date with month reduced by one

I was thinking in a way to improve the following query if possible: ...
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2answers
65 views

Abusive use of long database query?

I somehow acquired the idea that I should reduce the number of trips to the database as much as possible and so I use a lot of very long queries. For example, I had a function that does this: ...
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3answers
87 views

Inline PHP IP access log

For a website, I've got some inline PHP, posted below. It's supposed to log traffic to the website, and it does its job fine. But at the end of the day, I'm not even close to a PHP developer, and ...
3
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2answers
92 views

Is there a “prettier” way of forming this query, or a more efficient way of joining the tables?

Yesterday I posted a question involving multiple nested queries. The queries pulled information from the database and created a directory listing of all employees. There are two many-to-many ...
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1answer
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Would multiple joins boost performance, or are the nested queries an acceptable way to handle the situation?

I'm working on a directory that lists employee information. Each employee can belong to multiple departments and each employee can have multiple job titles. I have 5 ...
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My database class extends MySQLi

The following is a small class I extended MySQLi with. I'm going to use this in my upcoming projects, but my main reason to do this class is learning, so I would like to submit this for your review, ...
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3answers
259 views

Prepared statements from security viewpoint

I've decided to go with OOP style and prepared statements, and so far I like it a lot more than the procedural style. It's much more understandable in my opinion. For this code review, I've just ...
3
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1answer
86 views

UPDATE SQL with prepared stmt using only 1 variable

HTML form field names must be equal to SQL table field names. Changing only table name and allowed fields can be used in many other update pages. How can I improve this? ...
5
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1answer
120 views

Arithmetic quiz using PHP5 and mySQLi

I would very much appreciate a general review of my PHP code which grabs information from a mySQL database and also inserts some information into the database. Overview : Users go to /main.php and ...
2
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2answers
101 views

Workaround for have 2 column with pseudo AUTO INCREMENT

This is the situation : the table order has a column with ID AUTO INCREMENT but (there is always a but) i can't use it because i don't want number order 1234567 after 5 years but i want 1/2014 , ...
3
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1answer
39 views

Are all these steps necessary with prepared statement?

Are all these steps correct and necessary? ...
4
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2answers
96 views

Does this generic query follow good OOP standards?

I am trying to convert over to MySQLi and wanted expert advice. Is the enclosed code 100% OOP. Also, how secure is the code against attacks? I know nothing is 100% secure, but how good/safe is it? ...
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2answers
549 views

Update PHP function GetSQLValueString

The old function was: ...
5
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1answer
130 views

Help me shorten my URL shortener

I am working on a website, and due to some reasons, they want my code to be as short as possible. I have, from my side, tried everything to shorten this code. So if possible, can you all also help me ...
3
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1answer
145 views

Increase security of sign up form code

Does my PHP look secure enough for a sign up form? ...
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1answer
896 views

PHP starting OOP MySQLi singleton

this is my first post on the whole StackExchange network, so I might make some mistakes. And I'm also spanish spearker, so I'll probably have mistakes in my writting too.. Context: I'm starting with ...
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2answers
82 views

Critiques and possible improvements for this DB abstraction class

I'm trying to code a simple and scalable PHP framework for my own use. Could you please offer some critiques or mandatory improvements for these 2 classes? ...
3
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1answer
1k views

PHP Register Page ( MYSQLI )

I have a website written in PHP but the whole script is old so today I started upgrading from Mysql to Mysqli. So here's my register page. I still have to add account confirmation and send mail part ...
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1answer
41 views

How could I simplify this query?

How can this function be better? I feel there might be a more elegant way of doing it. For a little background on the function. I am trying to evaluate if someone has read and seen all the questions ...
3
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2answers
702 views

Some questions about correct use of Mysqli (Connection, query)

I'm beginner PHP developer and it's my first time using mysqli. I've no idea about if i use a correct implementation of the connection and query because some people defend this method and some others ...
6
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2answers
645 views

Minimalistic mysql db class

I am really just looking to make sure I am not making any weird mistakes that could hurt me in the long run or if something seems odd in the way I imagine it to work. This code does work for the way I ...
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1answer
227 views

How can I make this code safer against XSS attacks?

I'm not sure what I'm doing wrong, but I run the code using a Web Vulnerability software and I get a lot of XSS attacks against the code. Is there something I could do better? ...