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If you are new to PHP or just need to refresh your skills, this is the place to start. This series of tutorials will give you the basic knowledge you will need to create a simple PHP website.

PHP is a reflective programming language originally designed for producing dynamic web pages.[1] PHP is used mainly in server-side scripting, but can be used from a command line interface or in standalone graphical applications. Textual User Interfaces can also be created using ncurses.

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mysql_list_fields

(PHP 3, PHP 4, PHP 5)

mysql_list_fields -- List MySQL table fields

Description

resource mysql_list_fields ( string database_name, string table_name [, resource link_identifier] )

Retrieves information about the given table name.

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 warning 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 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 downward compatibility, the following deprecated alias may be used: mysql_listfields()

See Also

mysql_field_flags()
mysql_info()

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Another Useful functions:


ref.pdo-mysql | ref.pdo-mysql.connection | ref.mysqli | ref.mysql | function.mysqli-warning-count | function.mysqli-use-result | function.mysqli-thread-safe | function.mysqli-thread-id | function.mysqli-store-result | function.mysqli-stmt-store-result | function.mysqli-stmt-sqlstate | function.mysqli-stmt-send-long-data | function.mysqli-stmt-result-metadata | function.mysqli-stmt-reset | function.mysqli-stmt-prepare | function.mysqli-stmt-param-count | function.mysqli-stmt-num-rows | function.mysqli-stmt-insert-id | function.mysqli-stmt-init | function.mysqli-stmt-get-warnings | function.mysqli-stmt-free-result | function.mysqli-stmt-field-count | function.mysqli-stmt-fetch | function.mysqli-stmt-execute | function.mysqli-stmt-error | function.mysqli-stmt-errno | function.mysqli-stmt-data-seek | function.mysqli-stmt-close | function.mysqli-stmt-bind-result | function.mysqli-stmt-bind-param | function.mysqli-stmt-attr-set | function.mysqli-stmt-attr-get | function.mysqli-stmt-affected-rows | function.mysqli-stat | function.mysqli-ssl-set | function.mysqli-sqlstate | function.mysqli-slave-query | function.mysqli-set-opt | function.mysqli-set-local-infile-handler | function.mysqli-set-local-infile-default | function.mysqli-set-charset | function.mysqli-server-init | function.mysqli-server-end | function.mysqli-send-query | function.mysqli-send-long-data | function.mysqli-select-db | function.mysqli-rpl-query-type | function.mysqli-rpl-probe | function.mysqli-rpl-parse-enabled | function.mysqli-rollback | function.mysqli-report | function.mysqli-real-query | function.mysqli-real-escape-string | function.mysqli-real-connect | function.mysqli-query | function.mysqli-prepare | function.mysqli-ping | function.mysqli-param-count | function.mysqli-options | function.mysqli-num-rows | function.mysqli-num-fields | function.mysqli-next-result | function.mysqli-multi-query | function.mysqli-more-results | function.mysqli-master-query | function.mysqli-kill | function.mysqli-insert-id | function.mysqli-init | function.mysqli-info | function.mysqli-get-warnings | function.mysqli-get-server-version | function.mysqli-get-server-info | function.mysqli-get-proto-info | function.mysqli-get-metadata | function.mysqli-get-host-info | function.mysqli-get-client-version | function.mysqli-get-client-info | function.mysqli-get-charset | function.mysqli-free-result | function.mysqli-field-tell | function.mysqli-field-seek | function.mysqli-field-count | function.mysqli-fetch | function.mysqli-fetch-row | function.mysqli-fetch-object | function.mysqli-fetch-lengths | function.mysqli-fetch-fields | function.mysqli-fetch-field | function.mysqli-fetch-field-direct | function.mysqli-fetch-assoc | function.mysqli-fetch-array | function.mysqli-execute | function.mysqli-escape-string | function.mysqli-error | function.mysqli-errno | function.mysqli-enable-rpl-parse | function.mysqli-enable-reads-from-master | function.mysqli-embedded-server-start | function.mysqli-embedded-server-end | function.mysqli-dump-debug-info | function.mysqli-disable-rpl-parse | function.mysqli-disable-reads-from-master | function.mysqli-debug | function.mysqli-data-seek | function.mysqli-connect | function.mysqli-connect-error | function.mysqli-connect-errno | function.mysqli-commit | function.mysqli-close | function.mysqli-client-encoding | function.mysqli-character-set-name | function.mysqli-change-user | function.mysqli-bind-result | function.mysqli-bind-param | function.mysqli-autocommit | function.mysqli-affected-rows | function.mysql-unbuffered-query | function.mysql-thread-id | function.mysql-tablename | function.mysql-stat | function.mysql-select-db | function.mysql-result | function.mysql-real-escape-string | function.mysql-query | function.mysql-ping | function.mysql-pconnect | function.mysql-num-rows | function.mysql-num-fields | function.mysql-list-tables | function.mysql-list-processes | function.mysql-list-fields | function.mysql-list-dbs | function.mysql-insert-id | function.mysql-info | function.mysql-get-server-info | function.mysql-get-proto-info | function.mysql-get-host-info | function.mysql-get-client-info | function.mysql-free-result | function.mysql-field-type | function.mysql-field-table | function.mysql-field-seek | function.mysql-field-name | function.mysql-field-len | function.mysql-field-flags | function.mysql-fetch-row | function.mysql-fetch-object | function.mysql-fetch-lengths | function.mysql-fetch-field | function.mysql-fetch-assoc | function.mysql-fetch-array | function.mysql-escape-string | function.mysql-error | function.mysql-errno | function.mysql-drop-db | function.mysql-db-query | function.mysql-db-name | function.mysql-data-seek | function.mysql-create-db | function.mysql-connect | function.mysql-close | function.mysql-client-encoding | function.mysql-change-user | function.mysql-affected-rows |


PHP is a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML. If you are new to PHP and want to get some idea of how it works, try the introductory tutorial. After that, check out the online manual, and the example archive sites and some of the other resources available in the links section.