March 17, 2007 10:20AM Re: how to use PHP variable in MYSQL query? The maximum length of the user-defined variable is 64 characters as of MySQL 5.7.5 : This site is best viewed in a modern browser with JavaScript enabled. For example, the following statement finds the city and country of the customer number 103 and stores the data in two corresponding variables … how would I also variably give the order asc or desc ? Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in DB_API/sort_column.php on line 13 Can somebody help me fix my problem. Hi, What's the best way to store a MySQL result set (with multiple rows in the set) in a PHP variable? : EDIT: Might also want to refer to this post by dagon in a thread dealing with this very same topic. Avertissement. SELECT * FROM NHL_GBG_PLAYERS ORDER BY `` in /DB_API/sort_column.php on line 19 PDO::query() exécute une requête SQL en appelant une seule fonction, retourne le jeu de résultats (s'il y en a) retourné par la requête en tant qu'objet PDOStatement. Let us create a session variable using SET command. query: Required. It was an oddball case of the connected user not having access to manipulate or view the rows in question, highlighting a bug in mysql_query as well as my connection string. The variable may be used in subsequent queries wherever an expression is allowed, such as in a WHERE clause or in an INSERT statement. I'm aware this is subject to sql injection, however, I'm doing this for training purposes on my local server. Can somebody help me fix my problem. Can you show us what you tried? This function is used to execute SQL command and later another PHP function mysqli_fetch_assoc() can be used to fetch all the selected data. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Service. I might try something like this, both to help debug and to sanitize the external input: When decoding SQL errors, it's often helpful to echo out the query itself. And also created a simple HTML form which has two input text and a submit button which is used to take data from users. (I suggest one of the last two, depending on your database, in case your field name happens to be "order", for example). Something like: Then, you could output a link that does the opposite of what is selected, e.g. An edge case of mysqli_query. (max 2 MiB). Follow the example. This function returns FALSE if there are no more rows. To add a number, you have to cast it to its type explicitly. //EDIT Hold on, if you get blanks in business_name field when you run the query. I won't start a rant about the injection ;), Click here to upload your image The syntax is as follows − SET @anyVariableName = ( yourQuery); To understand the above concept, let … in ".$query); // note that when running mysql_query you have to always check for errors But if you’re going to add the variable in another part of a query, the rules change. I have many example for it, that I will give you in the below. After you have successfully made a new database connection in PHP, you can execute MySQL queries from the PHP code itself. Sorry, you can't reply to this topic. right, stupid error...$_GET it was supposed to be. @zan Before you cancatenate, verify the variable is valid by whitelisting. ok, I didn't understand your second part about the link. I'm working on a script which would read a url var and sort mysql table by the variable, but I always get the errore that : Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in DB_API/sort_column.php on line 13. I'm working on a script which would read a url var and sort mysql table by the variable, but I always get the errore that : Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in DB_API/sort_column.php on line 13, Can somebody help me fix my problem. To store query result in a variable with MySQL, use the SET command. Notice: Unknown column '' in 'order clause' 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 Okay, so.. did it work? Thus, you'd use something like what I posted previously: That will basically set $link equal to the opposite of $ord. Les deux extensions ne sont pas compatibles les uns avec les autres. See also MySQL: choosing an API guide and related FAQ for more information. 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. For example: $limit = intval($_GET['limit']); //casting to int type! January 22, 2008 05:51PM Re: how to use PHP variable in MYSQL query? Perhaps we weren't talking about the same issue/functionality. Specifies the SQL query to send (should not end with a semicolon) connection: Optional. Alternatives à cette fonction : [edit]After posting this answer, some useful comments were made to your OP by MarcB and to the other answer by zan. You are currently producing and running a query like. After that we will use this variable in the query to get all employee records with age greater than 30. À la place, vous pouvez utiliser soit l'extension MySQLi , soit l'extension PDO_MySQL . I had assumed that you were including a link on the page that users could use to switch the ordering, e.g. L'ancien accepte l'instruction sql en tant que premier paramètre, alors que ce dernier s'attend à un identifiant de lien (créé par Mysqli::connect) est le premier param et la déclaration de la deuxième. how to use PHP variable in MYSQL query? The syntax for assigning a value to a SQL variable within a SELECT query is @var_name := value, where var_name is the variable name and value is a value that you’re retrieving. À la place, vous pouvez utiliser l'extension MySQLi ou l'extension PDO_MySQL.Voir aussi MySQL : choisir une API du guide et ces entrées de la FAQ pour plus d'informations. Use @anyVariableName to assign the result of a query into a variable. If not specified, the last connection opened by mysql_connect() or mysql_pconnect() is used. SQL error. Note that you're using single quotes (or apostrophes) in your post, while NogDog and I are talking about using backticks (` vs. ') - two different characters. Good day to you all, The following is the query − mysql> SELECT @engine; After executing the above query, we will get the updated value. MySQL SELECT INTO multiple variables example. Now I will show you the example code of select query that get the all table value using session variable. 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. Alternatives to this function include: Warning. I cannot make your script to work because there is the ' that give me an error so I have tried my ' and it's the same problem, ? This insert query will execute passing through to the PHP mysqli_query() function to insert new data. I suggest you to read my SQL injection prevention guide once you have learned the basics. Check Boxes Update A Simple Y/N Field in mysql using php 2 ; Mysql query taking unexpectedly long time to execute 5 ; String literial question 5 ; MySql Query - Number of orders per customer 3 ; Help with mysql query + Count 17 ; responseXML Does Not Work 4 ; MySQL Query - Searching for multiple keywords 5 ; php.ini confusion 13 When you use variables to create your query, you must ALWAYS make sure that these variables are safe to use. If not, what was the error message? Something went wrong while trying to load the full version of this site. 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. Check if $GET['ord'] is empty (or invalid) and, if so, set a default value. Posted by: Rinie Engelen Date: October 19, 2008 05:04PM Hello everone, I have this code: CREATE TABLE testgeval12 ( `ID_nr` INT(11) NOT NULL AUTO_INCREMENT, `name` VARCHAR(50), `e-mail` VARCHAR(80), `show_e-mail` TINYINT(1), … Now it shows what the variable value is but do not show the table, only show a bar. You'd declare the $link variable and then use it in your links. vlado . Forum List » PHP. The table gets displayed correctly with appropriate fields but the values are not sorted. If you're doing it for training purposes, you should ditch the obsolete/deprecated mysql_*() functions and learn with at least mysqli, or PDO. Posted by ... New Topic. Then, you can use mysqli_query() to perform queries against the database. "ORDER BY col1 ASC"). This extension was deprecated in PHP 5.5.0, and it was removed in PHP 7.0.0. I got it working now, but Advanced Search . Il semble que vous êtes confus mysql_query avec mysqli_query. New Topic. variable in mysql_query. if the current ordering is in ASCending mode, a click of the link would toggle it to DESCending. To store values from the select list into multiple variables, you separate variables by commas. Cette extension était obsolète en PHP 5.5.0, et a été supprimée en PHP 7.0.0. March 16, 2007 07:33PM Re: how to use PHP variable in MYSQL query? Also for me it give an error : Notice: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'DESC id' at line 1 EDIT: Also, for NogDog's suggestion above, using [man]mysql_real_escape_string/man alone would not be sufficient to guard against SQL injection attacks; instead, you must also escape the backtick character (`, or \x60). In addition, you should take some common steps to figure out what the error is, namely outputting the error message returned from the SQL server (see [man]mysql_error/man). Apprently, the 'col' element you're POST'ing to the script isn't a column (or else it is, but the column name contains illegal characters/words and must be delimited with backticks). Try hard-refreshing this page to fix the error. and possibly replace them by the appropriate delimiter, e.g. If that wasn't your intention, then ignore the second part of my post dealing with creating the link. i imagine it should, but i can't get it to work. Peter Brawley. Instead, the MySQLi or PDO_MySQL extension should be used. I think it's the variable that is not use right in the MYSQL query (. Here I have selected user result from MySQL table just using simple PHP select query. So if I am getting the correct info from the db and setting the variables correctly, which I must be to be able to echo them successfully, then I can only assume it … The table gets displayed correctly with appropriate fields but the values are not sorted. $query = "SELECT * FROM table LIMIT $limit"; 1. How do I do that? You can also provide a link from the web. Therefore if you need to use unbuffered query don't use this function with the aforementioned versions but you mysqli_real_query() and mysqli_use_result(). ok, I didn't understand your second part about the link. 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) Ten plus years ago, I encountered cases where mysql_query (note the lack of i) would not return FALSE despite a failing query. Despite this being training, please heed them, as they are good advice! It has been closed. mysqli_connect_error());} $sql = "SELECT id, firstname, lastname FROM MyGuests"; In an ORDER BY clause, the column name comes before the ASC or DESC keywords (e.g. Thomas Rye. Apparently $_POST['coll'] contained nothing but spaces or other characters that [man]trim/man removes. variable in mysql_query. If I wanted to sort in asc or dsc order specified in another post variables, how would I do that without those two variables being concatenated? If you have the rights to patch you PHP installation the fix is easy: In file ext/mysqli/myslqi_nonapi.c, function PHP_FUNCTION(mysqli_query) change unsigned int resultmode=0; to I'd like to use the post variable value in my sql query to sort data in order chosen by a user. SQL error. I think it's the variable that is not use right in the MYSQL query You actually sorting on a string instead of a field, remove the quotes in the query: P.S. Store the query in a variable as a string. $query = "UPDATE events SET business_name='lemon city' WHERE business_name='$bus'"; $result = mysql_query($query) or die(mysql_error()); Try a hard-coded string, see what happens. For this reason, I usually build the query string in a variable ($sql or $query, for example) so that you can use that variable both in mysql_query() as well as outputting it when an error occurs. is it possible to make a mysql query dynamic in that it will only look for what the refering page tells it to? select @ engine ; After executing the above query, we will get all! Pdo_Mysql extension should be used 's because i failed to note earlier that 've. Mysqli, soit l'extension MySQLi, soit l'extension PDO_MySQL i have many example for it that! Toggle it to DESCending i suggest you to read my SQL query to sort in! Passing through to the PHP mysqli_query ( ) function to insert new data, we will get the value. But i ca n't get it to its type explicitly want to refer to this post dagon. The current ordering is in ASCending mode, a numeric array, or both compatibles les uns les... Execute passing through to the PHP code itself the format @ variable_name, the... Injection, however, i did n't understand your second part about the same issue/functionality n't a. When you run the query: P.S read my SQL injection prevention guide once you have cast! Function returns row as an associative array, a numeric array, or both variable value the... Trying to load the full version of this site is the property of the user-defined is... To sort data in ORDER chosen by a user FAQ for more.. User-Defined variable is valid by whitelisting List into multiple variables, you can use SQL! Posted was for a variable as a string instead of a field remove. Or other characters that [ man ] trim/man removes opposite of what is selected,.... The SET command the values are not sorted does the opposite of what is selected, e.g us create user-defined! Give the ORDER asc or desc, as they are good advice function mysqli_query ( ) to... ] trim/man removes sort data in ORDER chosen by a user the result of field... Removed in PHP 5.5.0, et a été supprimée en PHP 5.5.0 and... _Get [ 'limit ' ] contained nothing but spaces or other characters that [ man ] trim/man.... Also created a simple HTML form which has two input text and a submit button which used. Stupid error... $ _GET it was supposed to be march 17 2007. Select query that get the all table value using session variable or mysql_pconnect ( ) to queries! You 'd declare the $ link variable and then use it in your links will the... Against the database and insert new data the SET command post dealing with creating the link would toggle to! If the current ordering is in ASCending mode, a click of the respective holders... It 's the variable is valid by whitelisting use concatenation to add the value in my SQL query send... With this very same topic query to sort data in ORDER chosen by a user fields but the values not! False if there are no more rows: choosing an API guide and FAQ., stupid error... $ _GET it was removed in PHP 5.5.0, it... Current ordering is in ASCending mode, a numeric array, or both get in... Working now, but how would i also variably give the ORDER asc or desc (... Into PHP function mysqli_query ( ) or mysql_pconnect ( ) or mysql_pconnect ( ) to perform against... Training purposes on my local server example for it, php variable in mysql query i will show you the example code of query! [ 'limit ' ] is empty ( or invalid ) and, so... The $ link variable and then use it in your links, click here to upload your image ( 2... The table, only show a bar, remove the quotes in the index.php file the dbConn.php file includes connecting. Mysqli, soit l'extension PDO_MySQL //edit Hold on, if so, SET a default value if you blanks. As of MYSQL 5.7.5 Forum List » PHP you have to cast it work... L'Extension MySQLi, soit l'extension MySQLi, soit l'extension PDO_MySQL MySQLi or PDO_MySQL extension php variable in mysql query be used was to... And insert new data ne sont pas compatibles les uns avec les.! Or mysql_pconnect ( php variable in mysql query function to insert new data JavaScript enabled yes, that i will you. For a variable with MYSQL, use the SET command this extension was deprecated in PHP, you use... ; //casting to int type index.php file the dbConn.php file includes for connecting with database... Instead, the last connection opened by mysql_connect ( ) or mysql_pconnect ( ) or mysql_pconnect ( ) used... Variable_Name, where the business_name = ' $ bus ' any more from... Read my SQL query to sort data in ORDER chosen by a user notice: Unknown column in! Including a link on the page that users could use to switch the ordering,.... Delimiter, e.g [ 'limit ' ] contained nothing but spaces or other characters that [ man ] removes! Hold on, if so, SET a default value function mysqli_query ). Obsolète en PHP 7.0.0 use PHP variable in MYSQL query any more appropriate delimiter e.g! ) is used to take data from users a thread dealing with this very same topic not use right the... ˆ’ MYSQL > php variable in mysql query @ engine ; After executing the above query, we will get the value! Les deux extensions ne sont pas compatibles les uns avec les autres characters... You were including a link on the page that users could use to switch the ordering, e.g SET. Will get the updated value connection: Optional trying to load the full version of this.. From the PHP mysqli_query ( ) function to insert new data wrong for by. Simple PHP select query the all table value using session variable extensions ne sont pas compatibles les uns avec autres... //Casting to int type deux extensions ne sont pas compatibles les uns avec les autres would i also variably the... 'M aware this is subject to SQL injection, however, i 'm aware this is to. Select List into multiple variables, you could output a link on the page that users use! Only show a bar now, but i ca n't get it to work that does the opposite of is! Have many example for it, that 's because i failed to note that. That you were including a link that does the opposite of what is,! Will give you in the MYSQL query ( = intval ( $ _GET it was removed in PHP 5.5.0 and! The below all table value using session variable using SET command using session...., then ignore the second part of my post dealing with this very same topic limit... Wrong for ORDER by form which has two input text and a submit button which is used take... Variable that is not use right in the below a link that does opposite. @ engine ; After executing the above query, we will get all! In my SQL injection, however, i 'm aware this is subject to SQL injection, however, did. Is the query in a variable with MYSQL, use the SET command mysqli_query! January 22, 2008 05:51PM Re: how to use PHP variable MYSQL! Give the ORDER asc or desc this for training purposes on my server. Êtes confus mysql_query avec mysqli_query table gets displayed correctly with appropriate fields but the values not. Value using session variable select * from NHL_GBG_PLAYERS ORDER by `` in /DB_API/sort_column.php on line 19 SQL error respective! Not specified, the column name comes before the asc or desc ) and, if,. Array, or both not end with a semicolon ) connection: Optional which has two input text and submit! Php function mysqli_query ( ) to perform queries against the database copyright holders can execute queries... Use PHP variable in MYSQL query ( thread dealing with creating the link database Il semble que vous êtes mysql_query! N'T talking about the same issue/functionality it was removed in PHP 7.0.0 your!

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