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_field_tell() Function.
The built-in PHP mysqli_field_tell() function accepts a result object as a parameter, retrieves and returns the current position of the field cursor in the given object.
The built-in PHP mysqli_field_tell() function accepts a result object as a parameter, retrieves and returns the current position of the field cursor in the given object.
Syntax
Following below is the syntax to use this function -
mysqli_field_tell($result);
Parameter Details
Sr.No | Parameter & Description |
---|---|
1 | result(Mandatory) This is an identifier representing a result object. |
Return Value
This built-in PHP function returns an integer value specifying the current position of the field cursor in the given result object.
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_field_tell() 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 $res = mysqli_query($con, "SELECT * FROM myplayers"); //Fetching the fields while($info = mysqli_fetch_field($res)){ //Current field $currentfield = mysqli_field_tell($res); print("Current Field: ".$currentfield."\n"); print("Name: ".$info->name."\n"); print("Table: ".$info->table."\n"); print("Type: ".$info->type."\n"); } //Closing the statement mysqli_free_result($res); //Closing the connection mysqli_close($con); ?>
Output
When the above code is executed, it will produce the following result -
Table Created..... Record Inserted..... Current Field: 1 Name: ID Table: myplayers Type: 3 Current Field: 2 Name: First_Name Table: myplayers Type: 253 Current Field: 3 Name: Last_Name Table: myplayers Type: 253 Current Field: 4 Name: Place_Of_Birth Table: myplayers Type: 253 Current Field: 5 Name: Country Table: myplayers Type: 253
Example2
In an object oriented style the syntax of this function is $result->current_field(); 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 WHERE Name in(?, ?)"); $stmt -> bind_param("ss", $name1, $name2); $name1 = 'Kennedy'; $name2 = 'Paul'; //Executing the statement $stmt->execute(); //Retrieving the result $result = $stmt->get_result(); //Current Field $info = $result->fetch_field(); $field = $result->current_field; print("Current Field: ".$field."\n"); print("Field Name: ".$info->name); //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..... Current Field: 1 Field Name: Name
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_free_result() Function in PHP.
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