PHP | mysqli_stmt_execute() Function

PHP mysqli_stmt_execute() Function


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_execute() Function.

The built-in PHP mysqli_stmt_execute() function accepts a prepared statement object (created using the PHP prepare() function) as parameter, and executes it.

When invoked all the parameter markers will be replaced with the bounded data. After this PHP function, if you invoke the built-in PHP mysqli_stmt_affected_rows() function (in the case of UPDATE, DELETE, INSERT queries) you will get the number of rows affected. In same way if you invoke the PHP mysqli_stmt_fetch() function (in the case of SELECT) a result set is returned.

Syntax

Following below is the syntax to use this function -

mysqli_stmt_execute($stmt);


Parameter Details

Sr.NoParameter & Description
1

stmt(Mandatory)

This is an object representing a prepared statement.


Return Value

This built-in PHP function returns TRUE on success and FALSE on failure.

PHP Version

This PHP function was first introduced in PHP version 5 and works in all the later versions.

Example1

Assuming we have created a table named employee in the MYSQL database with the following contents $minus;

mysql> select * from employee;
+------------+--------------+------+------+--------+
| FIRST_NAME | LAST_NAME    | AGE  | SEX  | INCOME |
+------------+--------------+------+------+--------+
| Kennedy    | Nkpara       |   27 | M    |  16000 |
| Queen      | Douglas      |   25 | F    |  18300 |
| Stephanie  | Francis      |   24 | F    |  36000 |
| Paul       | Francis      |   30 | M    |  12256 |
| Justice    | Donald       |   28 | M    |  15000 |
+------------+--------------+------+------+--------+
5 rows in set (0.00 sec)

The following below is an example which demonstrates the usage of the built-in PHP mysqli_stmt_execute() function (in a procedural style) -

<?php
   $con = mysqli_connect("localhost", "root", "password", "mydb");

   $stmt = mysqli_prepare($con, "UPDATE employee set INCOME=INCOME-? where INCOME >?");
   mysqli_stmt_execute($stmt, "si", $reduct, $limit);
   $limit = 16000;
   $reduct = 5000;

   //Executing the statement
   mysqli_stmt_execute($stmt);
   print("Records Updated......\n");

   //Closing the statement
   mysqli_stmt_execute($stmt);

   //Closing the connection
   mysqli_close($con);
?>

Output

When the above code is executed, it will produce the following result -

Records Updated.....

After executing the above program, the contents of the employee table will be as shown below -

mysql> select * from employee;
+------------+--------------+------+------+--------+
| FIRST_NAME | LAST_NAME    | AGE  | SEX  | INCOME |
+------------+--------------+------+------+--------+
| Kennedy    | Nkpara       |   27 | M    |  16000 |
| Queen      | Douglas      |   25 | F    |  13300 |
| Stephanie  | Francis      |   24 | F    |  31000 |
| Paul       | Francis      |   30 | M    |  12256 |
| Justice    | Donald       |   28 | M    |  15000 |
+------------+--------------+------+------+--------+
5 rows in set (0.00 sec)

Example2

In an object oriented style the syntax of this function is $stmt->execute(); Following is the example of this function in an object oriented style $minus;

<?php
   //Creating a connection
   $con = new mysqli("localhost", "root", "password", "mydb");

   //Creating a table
   $con -> query("CREATE TABLE myplayers(ID INT, First_Name VARCHAR(255), Last_Name VARCHAR(255), Place_Of_Birth VARCHAR(255), Country VARCHAR(255))");
   print("Table Created.....\n");

   //Inserting values into the table using prepared statement
   $stmt = $con -> prepare( "INSERT INTO myplayers values(?, ?, ?, ?, ?)");
   $stmt -> bind_param("issss", $id, $fname, $lname, $pob, $country);
   $id = 1;
   $fname = 'Kennedy';
   $lname = 'Nkpara';
   $pob = 'PortHarcourt';
   $country = 'Nigeria';

   //Executing the statement
   $stmt->execute();

   //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.....

Example3

You can also execute a statement created by the PHP mysqli_stmt_prepare() function -

<?php
   $con = mysqli_connect("localhost", "root", "password", "mydb");

   $query = "CREATE TABLE Test(Name VARCHAR(255), AGE INT)"; 
   mysqli_query($con, $query);
   print("Table Created.....\n");

   //Initializing the statement
   $stmt = mysqli_stmt_init($con);

   mysqli_stmt_prepare($stmt, "INSERT INTO Test values(?, ?)");
   mysqli_stmt_bind_param($stmt, "si", $Name, $Age);
   $Name = 'Kennedy';
   $Age = 27;
   print("Record Inserted.....");

   //Executing the statement
   mysqli_stmt_execute($stmt);

   //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 below -

Table Created.....
Records Inserted.....


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 mysqli_stmt_fetch() Function in PHP.

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