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.
Note:
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.
Note: Field names returned by this function
are case-sensitive.
Example 1. mysql_field_name() example
<?php
/* The users table consists of three fields:
* user_id
* username
* password.
*/
$link = mysql_connect('localhost', 'mysql_user', 'mysql_password');
if (!$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);
?>
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The above example would produce the following output:
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For downwards compatibility mysql_fieldname()
can also be used. This is deprecated, however.