php man page for mysql_field_name

MYSQL_FIELD_NAME(3)							 1						       MYSQL_FIELD_NAME(3)

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

SYNOPSIS
       Warning

	      This  extension  is deprecated as of PHP 5.5.0, and will be removed in the future. Instead, the MySQLi or PDO_MySQL extension should
	      be used. See also MySQL: choosing an API guide and related FAQ for more information. Alternatives to this function include:

		     omysqli_fetch_field_direct(3) [name] or [orgname]

		     o PDOStatement::getColumnMeta [name]

       string mysql_field_name (resource  $result, int	$field_offset)

DESCRIPTION
       mysql_field_name(3) returns the name of the specified field index.

	      o $
		result -The result resource that is being evaluated. This result comes from a call to mysql_query(3).

	      o $
		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.

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

       Example #1

	      mysql_field_name(3) 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($res, 0) . "
";
	      echo mysql_field_name($res, 2);
	      ?>

	      The above example will output:

	      user_id
	      password

       Note

	      Field names returned by this function are case-sensitive.

       Note

	       For backward compatibility, the following deprecated alias may be used: mysql_fieldname(3)

       mysql_field_type(3), mysql_field_len(3).

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