mysql_field_name

(PHP 4, PHP 5)

mysql_field_nameGet the name of the specified field in a result

Warning

This extension was deprecated in PHP 5.5.0, and it was removed in PHP 7.0.0. Instead, the MySQLi or PDO_MySQL extension should be used. See also MySQL: choosing an API guide. Alternatives to this function include:

Description

mysql_field_name(resource $result, int $field_offset): string|false

mysql_field_name() returns the name of the specified field index.

Parameters

result

The result resource that is being evaluated. This result comes from a call to mysql_query().

field_offset

The numerical field offset. The field_offset starts at 0. If field_offset does not exist, an error of level E_WARNING is also issued.

Return Values

The name of the specified field index on success or false on failure.

Examples

Example #1 mysql_field_name() example

<?php/* The users table consists of three fields: *   user_id *   username *   password. */$link = mysql_connect('localhost', 'mysql_user', 'mysql_password');if (!$link) {    die('Could not connect to MySQL server: ' . 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);?>

The above example will output:

user_id
password

Notes

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

Note:

For backward compatibility, the following deprecated alias may be used: mysql_fieldname()

See Also