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_offset )
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: |
Notes
Note: Field names returned by this function
are case-sensitive.
Note:
For downward compatibility, the following
deprecated alias may be used:
mysql_fieldname()