mysql_field

Manual PHP

mysql_field_name

(PHP 3, PHP 4 , PHP 5)

mysql_field_name -- Get the name of the specified field in a result

Description

string mysql_field_name ( resource result, int field_index)

mysql_field_name() returns the name of the specified field index. result must be a valid result identifier and field_index is the numerical offset of the field.

Notã: field_index starts at 0.
e.g. The index of the third field would actually be 2, the index of the fourth field would be 3 and so on.

Notã: Field names returned by this function are case-sensitive.

Exemplu 1. mysql_field_name() example


<?php
/* The users table consists of three fields:
 *   user_id
 *   username
 *   password.
 */
$link = mysql_connect('localhost', 'mysql_user', 'mysql_password');
if (!$db_selected) {
    die('Could not set $dbname: ' . mysql_error());
}
$dbname = 'mydb';
$db_selected = mysql_select_db($dbname, $link);
if (!$db_selected) {
    die('Could not set $dbname: ' . mysql_error());
}
$res = mysql_query('select * from users', $link);

echo mysql_field_name($res, 0) . "\n";
echo mysql_field_name($res, 2);
?>