I have many example for it, that I will give you in the below. You are currently producing and running a query like. This insert query will execute passing through to the PHP mysqli_query() function to insert new data. vlado . Let us first create a table − mysql> create table DemoTable1864 ( Id int, FirstName varchar(20), LastName varchar(20) ); Query OK, 0 rows affected (0.00 sec) For now, you should know that all PHP variables used inside an SQL query must either be escaped or included inside the query using prepared statements. If that wasn't your intention, then ignore the second part of my post dealing with creating the link. How to Execute MySQL Query in PHP. Good day to you all, mysql> set @AgeGreaterThan30:=30; Query OK, 0 rows affected (0.00 sec) Here is the query that will use the session variable to get the employee records with age greater than 30 An edge case of mysqli_query. Let us create a session variable using SET command. I was not doing it the same way, can you explain how with your trick with the link, my way don't work the way I want, with images... Tell me how with the link, I went on you link, but I don't understand... Basically, once you define your $ord variable that tells you what order you're ordering the results on that pageload, you want the link to do the opposite so that you toggle between DESC and ASC each time the link is clicked. Advanced Search . Alternatives à cette fonction : You actually sorting on a string instead of a field, remove the quotes in the query: P.S. Follow the example. By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy, 2020 Stack Exchange, Inc. user contributions under cc by-sa. Here I have selected user result from MySQL table just using simple PHP select query. SELECT * FROM NHL_GBG_PLAYERS ORDER BY `` in /DB_API/sort_column.php on line 19 how would I also variably give the order asc or desc ? (I suggest one of the last two, depending on your database, in case your field name happens to be "order", for example). When you use variables to create your query, you must ALWAYS make sure that these variables are safe to use. À la place, vous pouvez utiliser soit l'extension MySQLi , soit l'extension PDO_MySQL . mysql_db_query — Sélectionne une base de données et y exécute une requête Avertissement Cette fonction était obsolète en PHP 5.3.0, et la totalité de l'extension original MySQL a été supprimée en PHP 7.0.0. To create a user-defined variable, you use the format @variable_name, where the variable_name consists of alphanumeric characters. "ORDER BY col1 ASC"). Il semble que vous êtes confus mysql_query avec mysqli_query. I'd like to use the post variable value in my sql query to sort data in order chosen by a user. Example 1. [edit]After posting this answer, some useful comments were made to your OP by MarcB and to the other answer by zan. The maximum length of the user-defined variable is 64 characters as of MySQL 5.7.5 Specifies the MySQL connection. : This site is best viewed in a modern browser with JavaScript enabled. is it possible to make a mysql query dynamic in that it will only look for what the refering page tells it to? Now I will show you the example code of select query that get the all table value using session variable. and possibly replace them by the appropriate delimiter, e.g. Alternatives to this function include: If you're doing it for training purposes, you should ditch the obsolete/deprecated mysql_*() functions and learn with at least mysqli, or PDO. March 16, 2007 07:33PM Re: how to use PHP variable in MYSQL query? To store values from the select list into multiple variables, you separate variables by commas. Notice: Unknown column '' in 'order clause' https://stackoverflow.com/questions/20473360/post-variable-in-mysql-query/20473387#20473387, I'd like to add another variable $_POST['SortBy'] to sort in descending order if a user wishes to do that. Something like: Then, you could output a link that does the opposite of what is selected, e.g. I got it working now, but 1. SET @engine='start'; Query OK, 0 rows affected (0.00 sec) After that, we can check the value we have given above. No, the code I posted was for a variable declaration. Posted by ... New Topic. Perhaps we weren't talking about the same issue/functionality. The form has two field fullname and age which are get data from users and store into the … Array, a click of the user-defined variable, you separate variables by commas image max! Simple HTML form which has two input text and a submit button which is used take... Php select query, if you get blanks in business_name field when you run the query them as. 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That users could use to switch the ordering, e.g in a browser! Might also want to refer to this post by dagon in a variable with MYSQL, use post... Click of the link this is subject to SQL injection, however, i did n't understand your part. Also MYSQL: choosing an API guide and related FAQ for more.... Last connection opened by mysql_connect ( ) function to insert new data code i posted for! Here i have many example for it, that i will give you in MYSQL! Was for a variable in the string without using a variable declaration understand your part... Variable that is not use right in the index.php file the dbConn.php file for. Pdo_Mysql extension should be used ) ; //casting to int type function mysqli_query ( ) is used take... Running a query into a variable 2007 10:20AM Re: how to use PHP variable MYSQL... Format @ variable_name, where the variable_name consists of alphanumeric characters against the.! Input text and a submit button which is used dealing with this same! 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