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_field_count() Function.
The built-in PHP mysqli_stmt_field_count() function accepts a statement object as a parameter and returns the number of fields in the result of the given statement.
The built-in PHP mysqli_stmt_field_count() function accepts a statement object as a parameter and returns the number of fields in the result of the given statement.
Syntax
Following below is the syntax to use this function -
mysqli_stmt_field_count($stmt);
Parameter Details
Sr.No | Parameter & Description |
---|---|
1 | stmt(Mandatory) This is an object representing a statement executing an SQL query. |
Return Value
This built-in PHP function returns an integer value indicating the number of rows in the resultset returned by the statement.
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_field_count() function (in a procedural style) -
<?php $con = mysqli_connect("localhost", "root", "password", "mydb"); mysqli_query($con, "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"); mysqli_query($con, "INSERT INTO myplayers values(1, 'Kennedy', 'Nkpara', 'PortHarcourt', 'Nigeria')"); mysqli_query($con, "INSERT INTO myplayers values(2, 'Jonathan', 'Trott', 'CapeTown', 'SouthAfrica')"); mysqli_query($con, "INSERT INTO myplayers values(3, 'Queen', 'Douglas', 'Texas', 'UnitedStates')"); print("Record Inserted.....\n"); //Retrieving the contents of the table $stmt = mysqli_prepare($con, "SELECT * FROM myplayers"); //Executing the statement mysqli_stmt_execute($stmt); //Field Count $count = mysqli_stmt_field_count($stmt); print("Field Count: ".$count); //Closing the statement mysqli_stmt_close($stmt); //Closing the connection mysqli_close($con); ?>
Output
When the above code is executed, it will produce the following result -
Table Created..... Record Inserted..... Field Count: 5
Example2
In an object oriented style the syntax of this function is $stmt->field_count(); 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 myplayers(ID INT, First_Name VARCHAR(255), Last_Name VARCHAR(255), Place_Of_Birth VARCHAR(255), Country VARCHAR(255))"); print("Table Created.....\n"); $con -> query("INSERT INTO myplayers values(1, 'Kennedy', 'Nkpara', 'PortHarcourt', 'Nigeria')"); $con -> query("INSERT INTO myplayers values(2, 'Jonathan', 'Trott', 'CapeTown', 'SouthAfrica')"); print("Records Inserted.....\n"); //Retrieving Data $stmt = $con ->prepare("SELECT First_Name, Last_Name, Country FROM myplayers"); //Executing the statement $stmt->execute(); //Field Count $count = $stmt->field_count; print("Field Count: ".$count); //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..... Records Inserted..... Field Count: 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_free_result() Function.
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