mysql_list_fields
(PHP 4, PHP 5, PECL mysql:1.0)
mysql_list_fields — List MySQL table fields
Description
resource mysql_list_fields
( string $database_name
, string $table_name
[, resource $link_identifier
] )
This function is deprecated. It is preferable to use
mysql_query() to issue a 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 MySQL 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 by chance no connection is found or established, an
E_WARNING level error is generated.
Examples
Example #1 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()
mysql_list_dbs
