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mysql_list_fields

PHP function Edit on GitHub ✎

(PHP 4, PHP 5)

List MySQL table fields

5-4-0 SQL Query: SHOW COLUMNS FROM sometable

Description

mysql_list_fields(string $database_name, string $table_name, resource $link_identifier = NULL): resource

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.

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()Listendand mysql_field_type().

Examples

Alternate to deprecated mysql_list_fields()

php

<?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:

output

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

Alias mysql_listfields()