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_fetch_fields() Function.
The mysqli_fetch_fields() function accepts a result object as a parameter, and returns an array of objects with each representing a field in result.
The mysqli_fetch_fields() function accepts a result object as a parameter, and returns an array of objects with each representing a field in result.
Syntax
Following below is the syntax to use this function -
mysqli_fetch_fields($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 array of object where each of the object contains definition information of a field in the given result. This built-in function returns false in case of no information.
The object returned contains the following properties $minus;
The object returned contains the following properties $minus;
- name
- orgname
- table
- orgtable
- length
- max_length
- flags
- charsetnr
- decimals
- type
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_fetch_fields() 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 all the fields $info = mysqli_fetch_fields($res); foreach ($info as $ele) { print("ID: ".$ele->name."\n"); print("First_Name: ".$ele->table."\n"); print("Last_Name: ".$ele->max_length."\n"); print("Place_Of_Birth: ".$ele->charsetnr."\n"); print("Country: ".$ele->flags."\n"); print("Country: ".$ele->type."\n"); print("\n"); } //Closing the statement mysqli_free_result($res); //Closing the connection mysqli_close($con); ?>
Output
When the above code is executed, it will produce the following result -
Table Created..... Record Inserted..... ID: ID First_Name: myplayers Last_Name: 1 Place_Of_Birth: 63 Country: 32768 Country: 3 ID: First_Name First_Name: myplayers Last_Name: 8 Place_Of_Birth: 33 Country: 0 Country: 253 ID: Last_Name First_Name: myplayers Last_Name: 10 Place_Of_Birth: 33 Country: 0 Country: 253 ID: Place_Of_Birth First_Name: myplayers Last_Name: 8 Place_Of_Birth: 33 Country: 0 Country: 253 ID: Country First_Name: myplayers Last_Name: 11 Place_Of_Birth: 33 Country: 0 Country: 253
Example2
In an object oriented style the syntax of this function is $result->fetch_fields(); 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(); //Fetching all the rows as arrays $info = $result->fetch_fields(); foreach ($info as $ele) { print("ID: ".$ele->name."\n"); print("First_Name: ".$ele->table."\n"); print("Last_Name: ".$ele->max_length."\n"); print("Place_Of_Birth: ".$ele->charsetnr."\n"); print("Country: ".$ele->flags."\n"); print("Country: ".$ele->type."\n"); print("\n"); } //Closing the statement $stmt->close(); //Closing the connection $con->close(); ?>
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_fetch_lengths() Function in PHP.
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