Calling a stored procedure in mysqli is helluva tricky business. There are bugs and limitations to avoid as well as many tricks to employ. Show
Well, to be honest, in the simplest case possible (when a stored procedure is the only sql query your code has to run, and the procedure itself is relatively simple, not using cursors or returning multiple result sets) you can call it just as any other query. But the more complex your stored procedure gets, the more complex the calling code would be. There is one thing about stored procedures any programmer stumbles upon at first: every stored procedure always returns one extra result set: one (or many) results with actual data, and one just empty. Which means if you try to call a procedure and then proceed to another query, then "Cannot execute queries while other unbuffered queries are active" error will occur, because you have to clear out that extra empty result first. Therefore, in order to proceed we've got to winkle out that extra result set from mysql first. And mysqli::next_result does exactly that. So basically we would only need to call this function in order to let our next SQL queries work. Also, we will need this function Calling a stored procedure without parameters that returns a single result setAs it was said above, in case your procedure is the only database interaction on the page, you can call it right away, without any additional stuff. But usually it is not the case and you have to execute other queries after the procedure. Hence, we've got to take out that extra result set from our way. When our query doesn't take any parameters and returns just one result set, we could add just a single call to mysqli::next_result
Calling a stored procedure without parameters that returns multiple result setsRelated articles:
Summary: in this tutorial, you will learn how to call a MySQL stored procedure using the PHP PDO. Setting up a stored procedure in MySQLTo execute a statement in the MySQL database, you can use any MySQL client tool e.g., mysql client tool or MySQL Workbench. First, insert data into the
Note that the Second, execute the following
The stored procedure Third, execute the stored procedure to check the result set:
The statement returns the following result set:
Calling a MySQL stored procedure from PHP using PDOThe following script illustrates how to call the
How it works. First, create a new connection to the MySQL database:
Second, construct a SQL statement that calls the
The statement accepts a named placeholder Third, create a prepared statement by calling the
Fourth, bind a value to the statement:
Fifth, execute the stored procedure call:
Since the stored procedure returns a result set, you can fetch each row in the result set into an associative array using the
Summary
Did you find this tutorial useful? How do I call a PHP stored procedure with parameters in MySQL?How to Call a Stored Procedure From PHP in MySQL. Right-click the PHP page you want to use to call the stored procedure and select "Open With." Click the PHP editor to open the code.. Add the PHP connection to the MySQL database. ... . Select a database name. ... . Call the stored procedure to retrieve MySQL records.. How can we call stored procedure with parameters in PHP with SQL Server?To call a stored procedure from a PHP application, you prepare and execute an SQL CALL statement. The procedure that you call can include input parameters (IN), output parameters (OUT), and input and output parameters (INOUT).
What is stored procedure in PHP?A stored procedure is a subroutine stored in the database catalog. Applications can call and execute the stored procedure. The CALL SQL statement is used to execute a stored procedure. Stored procedures can have IN , INOUT and OUT parameters, depending on the MySQL version.
How do I call a procedure with parameters in MySQL?This procedure accepts id of the customer as IN parameter and returns product name (String), customer name (String) and, price (int) values as OUT parameters from the sales table. To call the procedure with parameters pass @parameter_name as parameters, in these parameters the output values are stored.
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