MySQL and PHP
Copyright 1997-2021 the PHP Documentation Group.
mysql_field_name
Get the name of the specified field in a result
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 and related FAQ for more information. Alternatives to this function include:
mysqli_fetch_field_direct [name] or [orgname] |
PDOStatement::getColumnMeta [name] |
string|false mysql_field_name(resource result,
int field_offset);
mysql_field_name
returns the name of the specified field index.
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.
The name of the specified field index on success or
false
on failure.
Example 6.29 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
Field names returned by this function are case-sensitive.
For backward compatibility, the following deprecated alias may
be used: mysql_fieldname
mysql_field_type
|
mysql_field_len
|