`mysql_list_fields`

mysql_list_fields
List MariaDB table fields

Description

resource mysql_list_fields(string database_name,


string table_name,


resource link_identifier= =NULL);

Retrieves information about the given table name.

This function is deprecated. It is preferable to use mysql_query to issue an SQL SHOW COLUMNS FROM table [LIKE 'name'] statement instead.

Parameters

database_name: The name of the database that's being queried.
table_name: The name of the table that's being queried.
link_identifier: The MariaDB connection. If the link identifier is not specified, the last link opened by mysql_connect is assumed. If no such link is found, it will try to create one as if mysql_connect was called with no arguments. If no connection is found or established, an E_WARNING level error is generated.

Return Values

A result pointer resource on success, or FALSE on failure.

The returned result can be used with mysql_field_flags, mysql_field_len, mysql_field_name and mysql_field_type.

Examples

Example 20.54. Alternate to deprecated mysql_list_fields

<?php
$result = mysql_query('SHOW COLUMNS FROM sometable');
if (!$result) {
 echo 'Could not run query: ' . mysql_error();
 exit;
}
if (mysql_num_rows($result) > 0) {
 while ($row = mysql_fetch_assoc($result)) {
 print_r($row);
 }
}
?>

The above example will output something similar to:

Array
(
 [Field] => id
 [Type] => int(7)
 [Null] => 
 [Key] => PRI
 [Default] =>
 [Extra] => auto_increment
)
Array
(
 [Field] => email
 [Type] => varchar(100)
 [Null] =>
 [Key] =>
 [Default] =>
 [Extra] =>
)

Notes

Note

For backward compatibility, the following deprecated alias may be used: mysql_listfields