Hello folks! welcome back to a new edition of our tutorial on PHP. In this tutorial guide, we are going to be studying about the PHP mysqli_stmt_free_result() Function.
The built-in PHP mysqli_stmt_free_result() function accepts a prepared statement object as a parameter, and then frees the memory in which the result of the given statement is stored (when you store the result using the mysqli_stmt_store_result() function).
The built-in PHP mysqli_stmt_free_result() function accepts a prepared statement object as a parameter, and then frees the memory in which the result of the given statement is stored (when you store the result using the mysqli_stmt_store_result() function).
Syntax
Following below is the syntax to use this function -
mysqli_stmt_free_result($stmt);
Parameter Details
Sr.No | Parameter & Description |
---|---|
1 | stmt(Mandatory) This is an object representing the prepared statement. |
Return Value
This built-in PHP function does not return any value.
PHP Version
This PHP function was first introduced in PHP version 5 and works in all the later versions.
Example1
The following below is an example which demonstrates the usage of the built-in PHP mysqli_stmt_free_result() function (in a procedural style) -
<?php $con = mysqli_connect("localhost", "root", "password", "mydb"); mysqli_query($con, "CREATE TABLE Test(Name VARCHAR(255), AGE INT)"); mysqli_query($con, "insert into Test values('Kennedy', 27),('Paul', 30),('Justice', 28)"); print("Table Created.....\n"); //Reading records $stmt = mysqli_prepare($con, "SELECT * FROM Test"); //Executing the statement mysqli_stmt_execute($stmt); //Storing the result mysqli_stmt_store_result($stmt); //Number of rows $count = mysqli_stmt_num_rows($stmt); print("Number of rows in the table: ".$count."\n"); //Freeing the resultset mysqli_stmt_free_result($stmt); $count = mysqli_stmt_num_rows($stmt); print("Number of rows after freeing the result: ".$count."\n"); //Closing the statement mysqli_stmt_close($stmt); //Closing the connection mysqli_close($con); ?>
Output
When the above code is executed, it will produce the following result -
Table Created..... Number of rows in the table: 3 Number of rows after freeing the result: 0
Example2
In an object oriented style the syntax of this function is $stmt->free_result(); Following is the example of this function in an object oriented style -
<?php //Creating a connection $con = new mysqli("localhost", "root", "password", "mydb"); $con -> query("CREATE TABLE Test(Name VARCHAR(255), AGE INT)"); $con -> query("insert into Test values('Kennedy', 27),('Paul', 30),('Justice', 28)"); print("Table Created.....\n"); $stmt = $con -> prepare( "SELECT * FROM Test"); //Executing the statement $stmt->execute(); //Storing the result $stmt->store_result(); print("Number of rows ".$stmt ->num_rows); //Freeing the resultset memory $stmt->free_result(); //Closing the statement $stmt->close(); //Closing the connection $con->close(); ?>
Output
When the above code is executed, it will produce the following result -
Table Created..... Number of rows: 3
Alright guys! This is where we are going to be rounding up for this tutorial post. In our next tutorial, we are going to be discussing about the PHP mysqli_stmt_get_result() Function.
Do feel free to ask your questions where necessary and we will attend to them as soon as possible. If this tutorial was helpful to you, you can use the share button to share this tutorial.
Follow us on our various social media handles available and also subscribe to our newsletter to get our tutorial posts delivered directly to your emails.
Thanks for reading and bye for now.
Do feel free to ask your questions where necessary and we will attend to them as soon as possible. If this tutorial was helpful to you, you can use the share button to share this tutorial.
Follow us on our various social media handles available and also subscribe to our newsletter to get our tutorial posts delivered directly to your emails.
Thanks for reading and bye for now.