PHP mysqli_fetch_field() Function

PHP mysqli_fetch_field() function returns the next field in the result set, as an object.

Syntax

object mysqli_fetch_field(result);;

mysqli_fetch_field() Function Parameter

Parameter	Description
result :	Required parameter. Mention a result set identifier returned by mysqli_query().

mysqli_fetch_field() Function Return Value

Return Values :	Returns an object containing field information. The properties of the object are: name - column name table - name of the table the column belongs to, which is the alias name if one is defined max_length - maximum length of the column not_null - 1 if the column cannot be NULL primary_key - 1 if the column is a primary key unique_key - 1 if the column is a unique key multiple_key - 1 if the column is a non-unique key numeric - 1 if the column is numeric blob - 1 if the column is a BLOB type - the type of the column unsigned - 1 if the column is unsigned zerofill - 1 if the column is zero-filled

mysqli_fetch_field() Function Example

<?php
$con = mysqli_fetch_fieldt("localhost","user","password","db");

if (mysqli_connect_errno())
{
	echo "Failed to connect to MySQL: " . mysqli_connect_error();
}

$sql = "SELECT fname, lname FROM employee";
$sql_result = mysqli_query($con, $sql);

while ($field_info = mysqli_fetch_field($sql_result)) {
  echo "Name : " . $field_info->name;
  echo "Table Name: " . $field_info->table;
}
  
mysql_free_result($sql_result);

mysqli_close($con);
?>

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