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Questions tagged [php]

Use ONLY if PHP is directly relevant to the question and likely to be the source of your problem, not just because you're using a PHP library to connect to a database. PHP stands for Professional Hypertext Preprocessor, a widely used platform for dynamic web applications. If you have a general programming question about PHP, please ask it on Stack Overflow instead.

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15 views

How to prevent a record from being affected by the ORDER BY RAND() function?

I am building an online exam site using php and mysql. It's just for MCQ type questions. Here is my database structure: 1) QUESTIONS ( Exam_ID, Questions_ID, Questions_Des) 2) OPTIONS ( Question_ID, ...
0
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1answer
13 views

How to prevent a record from being affected by the ORDER BY RAND statement in MYSQL

I have a series of problems all which I can't put in the title but I will try to explain them as best as I can. I am building an online exam platform with PHP and MySQL. Problem 1: Prevent a record ...
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0answers
17 views

How to show dynamic data row to data column in mysql or within php?

I have problem with query mysql. So I have database table and I've tried with my query like this SELECT GROUP_CONCAT( 'MAX(IF(day(tanggal) = ', day(tanggal), ', presensi, NULL)) ...
0
votes
1answer
31 views

Results not returning rows where second parameter should match null

I'm trying to left join three tables using columns from the first and third tables as the filters. The second and third tables could have null values where I am trying to join. I want to be able to ...
1
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0answers
35 views

MariaDB DELETE not removing all rows

I'm managing a MariaDB server and I noticed that an application run a DELETE query in a table each time the entity was saved and then it will insert the new rows referenced that entity. Sometimes ...
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0answers
5 views

Contact Form for my website not working in php [migrated]

I am trying to make a contact form for my website in php, but it seems something wrong somewhere, which i am unable to locate. Can you please help me to locate the error in the following code will be ...
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0answers
26 views

How to prevent inserting same value in two columns in one Table?

I'm trying to solve problem which will compare BEFORE INSERTING columns values partnerCode and partnerCodeOwner1 with username in the table below, If partnerCode and partnerCodeOwner1 values same with ...
0
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1answer
12 views

Best Approach for PII and Databases

PII, or Personally Identifiable Information, involves information that may include the following, among other data: First Name Last Name Email Address Phone (any of them) Billing Address Shipping ...
0
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1answer
46 views

How can I write a trigger that can subtract values between two tables

I have a table called transaction that has these fields CREATE TABLE transaction ( transaction_id INT AUTO_INCREMENT, status varchar(255), myPIN varchar(255), amount_paid varchar(255)...
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0answers
19 views

how to divide and insert post value integer data in mysql two column using php? [migrated]

<form> Service fee : <input type="text" value="300" name="gst"> <select> <option>CGST 9% AND SGST 9% on service fee</option> <option>IGST 18% on service fee</...
0
votes
1answer
24 views

MySQL: Can not add foreign key into create table statement

The queries below (assigned to php variables) seem to have an issue on the 2nd query, where I set the foreign key to the "couponId" column on the first table. My IDE lints "couponId" (inside the ...
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0answers
15 views

MongoDB / PHP - How to change data type for every occurrence of field in a document

I'm trying to learn how to use MongoDB with PHP. I Have built a web application that loads data from database etc. The issue I am having is that when I import my data from a .CSV using MongoDB Compass,...
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votes
1answer
35 views

How can I capture user IP address and store them automatically to my database? [closed]

am currently running an open voting system with no login form. I wanted to restrict double voting using user IP Addresses, how can I record user addresses direct to my database and use them to ...
0
votes
1answer
20 views

Cannot connect to MySQL using PHP 7 [duplicate]

The version of MySQL is 8.0.16. This is installed on an EC2 Linux and is a fresh install. I have run the mysql_secure_installation command after installation and was able to change the root password ...
0
votes
1answer
28 views

Php PDO Get all column names from table in specific database

I currently have the following query. Which fetches all column names for a table. But when there are 2 tables with the same name (in different databases) it fetches those column names as well. In ...
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0answers
10 views

mysql-5.7 and php5.6 - error on LONGTEXT Field type saying a 387 character long string cant fit in

Ok Here is my frustration cause: I've got this table structure: CREATE TABLE `blog_post` ( `bp_id` INT(11) NOT NULL AUTO_INCREMENT, `user_fid` INT(11) NULL DEFAULT NULL, `cat_fid` INT(11)...
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votes
1answer
27 views

Group Concatenate In mysql

Please can some one help me out of this. I have two tables, One is like this And the other is like this How can i use one mysql query to insert all users subject, total scores of those terms to ...
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votes
1answer
24 views

I want to make drop down elements compulsory but unable to do so in php file [closed]

I want to make it compulsory for user to select one of the option in city , if he will not select the drop down option , the form will not submitted. But it is not happening...following is the code... ...
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0answers
43 views

mysql8 gives “Access denied for user” error with php but not navicat/workbench

I have been reading billions of answers/questions for that same error : SQLSTATE[HY000] [1045] Access denied for user 'root'@'ALEXPC' (using password: YES) I myself even handle this error like ...
0
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0answers
23 views

Calculate the SUM amount in daily basis Expense in sql/php

I want to get the total amount of Expenses in dail basis, if there is not Expeses posted/inserted THEN echo zero. this is the Code i have tried <?php $sql = "SELECT date(date) as td ,...
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votes
1answer
16 views

How to retrieve a users uploaded files using foreign key

I have two tables,users, and,files, Users Id,firstname,lastname,email,password files Id,filename,description,userid Userid in files is foreign key witch relates to Id in users I am trying to ...
0
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0answers
28 views

PHP slow with remote MySQL

I run ubuntu 18.10 and I've run into issues with a remote database server. I connect using a private network (by IP). The query in bash mysqlcommand takes about 9ms, while in the PHP software (eg. ...
1
vote
1answer
30 views

Mysql multiline statement causes syntax error

// php, using wordpress to send a raw query string $output = $wpdb->query(" INSERT INTO wp_priceGrids (gridId) VALUES (NULL); SELECT MAX(gridId) FROM wp_priceGrids; "); Results in: ...
0
votes
1answer
22 views

viewing a column in mysql database using php script

I'm trying to print a row from a table in mysql using a PHP script - here is the code but its not working - it shows Bad query apparently there is no issue: $conn = mysqli_connect($servername, $...
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votes
1answer
35 views

Mysql join query improvement and GROUP_CONCAT on GROUP BY

I have two tables which I need to perform a left outer join on to get the result set I want. The query I have now works but its taking too long to process. Any suggestions? Query: SELECT Date_format(...
0
votes
1answer
35 views

Mongodb find() not working as expected, PHP [closed]

Mongodb find() seems Not to work, I have tried all I could and nothing works so far. using PHP7+ I have a Document in the strure like the image below In SQL I could do something like:SELECT....... ...
0
votes
1answer
28 views

Fetch records only for today's date by using PHP & Mysql

I have a column in my table as date and time format like YYYY-MM-DD HH:MM:SS And i want to fetch data which was stored on current date only, everyday I'll be getting data for 24hrs only,
2
votes
1answer
150 views

How to join 2 tables in mysql but with different values in one of the tables

I have 2 tables(as shown by the image below) inbox_messages_table and users_table So what i am trying to do is combining the 2 tables ON user_id but in my inbox_messages_table i have an id which i ...
0
votes
1answer
18 views

Why does the column content say “Array”?

I got this problem when I'm doing mysql that every time that I post pictures on the blog it will say to the database that I got array on image column. it is supposed to have the image that I inserted
0
votes
1answer
16 views

Pulling a username from table one to update credits on table 2 under the same username

I currently have 2 tables, one being a table that stores votes, and the other being the members table. I want SQL to pull the username from the "votes" table (as this keeps track of who voted), then ...
0
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0answers
322 views

Sync local mysql database and live server database?

Someone answer the question on the below but he did make it clear, I can't see code where he connect to Database how to combine the file (Footer.php, Config.php, Sync.php, sync_server.php) Please I ...
0
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0answers
68 views

PHP-FPM Can't connect to Mysql via localhost but can by ip

Using mariadb 10.2, php 7.0, in Centos 6.9 hosted cpanel server. Everything is installed and compiled through cpanel. If I put PHP into FPM mode it cannot connect to DB unless I specify 127.0.0.1 ...
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0answers
49 views

Improving/ Optimizing Performance Query in MySQL PHP

I have a invoices, invoices_items, order, order_items. Invoices and Orders tables contains around 1 Millions records. Invoices_items and Orders_items tables contains more than 2 Millions records. ...
1
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0answers
28 views

Weird MySQL column name issue

After trying to use the Propel PHP ORM on my database, I noticed that there is an issue with foreign keys. This is a table with foreign keys: CREATE TABLE `appusers` ( `AppID` INT(11) NOT NULL, `...
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0answers
16 views

How to get single row data into a row with multiple columns [duplicate]

I have a table as follows: Id Movie_name Person_Name Role_Name 1 mov1 xyz Singer 1 mov1 pqr Dancer 1 mov1 abc Actor 2 ...
0
votes
1answer
20 views

Accessing mysql database without logging in (from android java application) (using php server side) [closed]

Just like all e-commerce applications (like amazon) let you access the database and browse items without logging in or signing up, how can i do this with mysql database (without logging in with ...
0
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0answers
67 views

PHP - mysqli::real_connect(): (HY000/2002): Invalid argument in file

On a work project, I'm load-testing a php service on MySQL 5.6 loaded on a beefy Google Compute Engine VM. After I exceed a certain amount of requests per second in my load test, MySQL starts giving ...
2
votes
0answers
81 views

SQL Server stored procedure not throwing certain kind of error

I noticed an issue in my app recently where an database insert that occurred in a stored procedure was failing, but no exception was getting thrown. The insert failed because a column that doesn't ...
0
votes
2answers
66 views

Most performant design for each member to manage his/her own news list?

Say a news website has news categories such as Politics, Business, Society, Education, Health, Tech, Celebrity, Lifestyle, ... etc. The number of categories may be more than 20. New categories may be ...
0
votes
1answer
35 views

Get total row by month in multiple tables [closed]

I am new in Oracle database and php, I tried to create a monthly report which covers the whole 12 months of a year. Currently I have 5 different tables which will store data every month for one year. ...
0
votes
1answer
35 views

Using a DB2 merge with conditionals for matches?

Within a PHP script I'm running a working merge but I need to add date conditionals to it, and my updates cause it to no longer work. The logic I'm looking for is this: If there's a match AND the ...
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0answers
198 views

Display Dynamic Pivot MySql Table to PHP

i need help on how to display this on html or php. i have this dynamic pivot table code. SET @sql_dynamic:= (SELECT GROUP_CONCAT(DISTINCT CONCAT('if(sum(if(attendance_date = "', ...
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0answers
4 views

Submit values to mysql data base form a form in side another form together

I have some questions on php. imagine this form <form> <input type="text" name="name"> <form id="second" onsubmit="return false;"> <input type="text" name="name1"> </form&...
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0answers
47 views

Connecting to MS SQL Server database via PHP

I’m new to SQL, databases and PHP, and I’m trying to find out the way to query my MS SQL Server database via PHP. I understand I must first establish a connection to the database which is accomplished ...
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0answers
44 views

Need an efficient mysql database schema to store points/ratings

I have four main tables- 1.user(user_id, name,...) 2. post(post_id, description, ...) 3.comment(comment_id,user_id,comment,...) 4.reply(reply_id,user_id, reply,...) and 5.user_post(user_id,...
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votes
3answers
17 views

MYSQL: Display NULL value when foreing key is NULL

I have the following database structure in MYSQL: CREATE TABLE xs_bugtracking ( `id` INT(11) NOT NULL AUTO_INCREMENT PRIMARY KEY, `product` VARCHAR(64) NOT ...
0
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1answer
43 views

Help in mysql query

I have a column in database with name paid_amount that have multiple values with a separator like: 1,2,4,10 I need the sum of these values: sum = 17 select sum(paid_amount) from invoices where ...
0
votes
1answer
1k views

Postgresql 10 There is no unique or exclusion constraint matching the ON CONFLICT specification

I currently have a table which looks like this: CREATE TABLE "PDPC".collection ( col_no bigint NOT NULL DEFAULT nextval('"PDPC".collection_col_no_seq'::regclass), q1 character varying(10000) ...
0
votes
1answer
56 views

MYSQL ONLY RIGHT JOIN WHEN LEFT SIDE NULL

my English is not that good, so translated with Google Translate. Have been able to fix many problems with this site anyway, thanks to all active users here. Unfortunately I have to ask my first ...
0
votes
0answers
35 views

SQLITE PHP Like Query wont return results on all rows

I have created a SQLite query in PHP which queries user input and checks it against the database, however when I run the query it just displays everything in the database. and if I was trying to ...